9156494631 has 4 divisors (see below), whose sum is σ = 12208659512. Its totient is φ = 6104329752.

The previous prime is 9156494629. The next prime is 9156494671. The reversal of 9156494631 is 1364946519.

It is a happy number.

9156494631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1364946519 = 3 ⋅454982173.

It is not a de Polignac number, because 9156494631 - 2¹ = 9156494629 is a prime.

It is a super-2 number, since 2×9156494631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9156494671) 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 3 ways as a sum of consecutive naturals, for example, 1526082436 + ... + 1526082441.

It is an arithmetic number, because the mean of its divisors is an integer number (3052164878).

Almost surely, 2^9156494631 is an apocalyptic number.

9156494631 is a deficient number, since it is larger than the sum of its proper divisors (3052164881).

9156494631 is a wasteful number, since it uses less digits than its factorization.

9156494631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052164880.

The product of its digits is 699840, while the sum is 48.

The square root of 9156494631 is about 95689.5743067133. The cubic root of 9156494631 is about 2092.0709790203.

The spelling of 9156494631 in words is "nine billion, one hundred fifty-six million, four hundred ninety-four thousand, six hundred thirty-one".