49165131 has 4 divisors (see below), whose sum is σ = 65553512. Its totient is φ = 32776752.

The previous prime is 49165117. The next prime is 49165159. The reversal of 49165131 is 13156194.

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

It is not a de Polignac number, because 49165131 - 2¹⁰ = 49164107 is a prime.

It is a super-2 number, since 2×49165131² = 4834420212494322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49165111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8194186 + ... + 8194191.

It is an arithmetic number, because the mean of its divisors is an integer number (16388378).

Almost surely, 2^49165131 is an apocalyptic number.

49165131 is a deficient number, since it is larger than the sum of its proper divisors (16388381).

49165131 is a wasteful number, since it uses less digits than its factorization.

49165131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16388380.

The product of its digits is 3240, while the sum is 30.

The square root of 49165131 is about 7011.7851507302. The cubic root of 49165131 is about 366.3411745971.

The spelling of 49165131 in words is "forty-nine million, one hundred sixty-five thousand, one hundred thirty-one".