49159431 has 6 divisors (see below), whose sum is σ = 71008080. Its totient is φ = 32772948.

The previous prime is 49159387. The next prime is 49159447. The reversal of 49159431 is 13495194.

It is a happy number.

It is not a de Polignac number, because 49159431 - 2⁶ = 49159367 is a prime.

It is a super-2 number, since 2×49159431² = 4833299312487522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49152431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2731071 + ... + 2731088.

It is an arithmetic number, because the mean of its divisors is an integer number (11834680).

Almost surely, 2^49159431 is an apocalyptic number.

49159431 is a deficient number, since it is larger than the sum of its proper divisors (21848649).

49159431 is a wasteful number, since it uses less digits than its factorization.

49159431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462165 (or 5462162 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 49159431 is about 7011.3786804023. The cubic root of 49159431 is about 366.3270166945.

The spelling of 49159431 in words is "forty-nine million, one hundred fifty-nine thousand, four hundred thirty-one".