49019131 has 4 divisors (see below), whose sum is σ = 56021872. Its totient is φ = 42016392.

The previous prime is 49019123. The next prime is 49019171. The reversal of 49019131 is 13191094.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49019131 - 2³ = 49019123 is a prime.

It is a super-2 number, since 2×49019131² = 4805750407990322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49019131.

It is not an unprimeable number, because it can be changed into a prime (49019101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3501360 + ... + 3501373.

It is an arithmetic number, because the mean of its divisors is an integer number (14005468).

Almost surely, 2^49019131 is an apocalyptic number.

49019131 is a deficient number, since it is larger than the sum of its proper divisors (7002741).

49019131 is an equidigital number, since it uses as much as digits as its factorization.

49019131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002740.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 49019131 is about 7001.3663666459. The cubic root of 49019131 is about 365.9781880558.

The spelling of 49019131 in words is "forty-nine million, nineteen thousand, one hundred thirty-one".