156242037831 has 24 divisors (see below), whose sum is σ = 241034559360. Its totient is φ = 89708343120.

The previous prime is 156242037829. The next prime is 156242037839. The reversal of 156242037831 is 138730242651.

It is not a de Polignac number, because 156242037831 - 2¹ = 156242037829 is a prime.

It is a super-2 number, since 2×156242037831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156242037839) 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 23 ways as a sum of consecutive naturals, for example, 11319915 + ... + 11333708.

It is an arithmetic number, because the mean of its divisors is an integer number (10043106640).

Almost surely, 2^156242037831 is an apocalyptic number.

156242037831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

156242037831 is a deficient number, since it is larger than the sum of its proper divisors (84792521529).

156242037831 is a wasteful number, since it uses less digits than its factorization.

156242037831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22653667 (or 22653656 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 156242037831 in words is "one hundred fifty-six billion, two hundred forty-two million, thirty-seven thousand, eight hundred thirty-one".