4901540121 has 21 divisors (see below), whose sum is σ = 7351783599. Its totient is φ = 3266433216.

The previous prime is 4901540101. The next prime is 4901540123. The reversal of 4901540121 is 1210451094.

The square root of 4901540121 is 70011.

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

4901540121 is a `hidden beast` number, since 490 + 1 + 54 + 0 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2959904025 + 1941636096 = 54405^2 + 44064^2 .

It is not a de Polignac number, because 4901540121 - 2⁹ = 4901539609 is a prime.

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 (4901540123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1889001 + ... + 1891593.

Almost surely, 2^4901540121 is an apocalyptic number.

4901540121 is the 70011-st square number.

4901540121 is the 35006-th centered octagonal number.

It is an amenable number.

4901540121 is a deficient number, since it is larger than the sum of its proper divisors (2450243478).

4901540121 is an frugal number, since it uses more digits than its factorization.

4901540121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204 (or 2596 counting only the distinct ones).

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

The cubic root of 4901540121 is about 1698.6771855988.

The spelling of 4901540121 in words is "four billion, nine hundred one million, five hundred forty thousand, one hundred twenty-one".