49154121 has 45 divisors (see below), whose sum is σ = 79432023. Its totient is φ = 30287520.

The previous prime is 49154113. The next prime is 49154129. The reversal of 49154121 is 12145194.

The square root of 49154121 is 7011.

It is a perfect power (a square), and thus also a powerful number.

49154121 is a `hidden beast` number, since 491 + 54 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (49154113) and next prime (49154129).

It can be written as a sum of positive squares in only one way, i.e., 2368521 + 46785600 = 1539^2 + 6840^2 .

It is not a de Polignac number, because 49154121 - 2³ = 49154113 is a prime.

It is a super-2 number, since 2×49154121² = 4832255222565282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (49154129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1198861 + ... + 1198901.

Almost surely, 2^49154121 is an apocalyptic number.

49154121 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

49154121 is the 7011-st square number.

49154121 is the 3506-th centered octagonal number.

It is an amenable number.

49154121 is a deficient number, since it is larger than the sum of its proper divisors (30277902).

49154121 is an equidigital number, since it uses as much as digits as its factorization.

49154121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 63 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The cubic root of 49154121 is about 366.3138265059.

The spelling of 49154121 in words is "forty-nine million, one hundred fifty-four thousand, one hundred twenty-one".