156444131 has 2 divisors, whose sum is σ = 156444132. Its totient is φ = 156444130.

The previous prime is 156444109. The next prime is 156444139. The reversal of 156444131 is 131444651.

156444131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156444131 is a prime.

It is a super-2 number, since 2×156444131² = 48949532248690322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 156444094 and 156444103.

It is not a weakly prime, because it can be changed into another prime (156444139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78222065 + 78222066.

It is an arithmetic number, because the mean of its divisors is an integer number (78222066).

Almost surely, 2^156444131 is an apocalyptic number.

156444131 is a deficient number, since it is larger than the sum of its proper divisors (1).

156444131 is an equidigital number, since it uses as much as digits as its factorization.

156444131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 156444131 is about 12507.7628295391. The cubic root of 156444131 is about 538.8316428902.

Adding to 156444131 its reverse (131444651), we get a palindrome (287888782).

The spelling of 156444131 in words is "one hundred fifty-six million, four hundred forty-four thousand, one hundred thirty-one".