156431141 has 2 divisors, whose sum is σ = 156431142. Its totient is φ = 156431140.

The previous prime is 156431137. The next prime is 156431159. The reversal of 156431141 is 141134651.

156431141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151044100 + 5387041 = 12290^2 + 2321^2 .

It is a cyclic number.

It is not a de Polignac number, because 156431141 - 2² = 156431137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156431141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156431741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78215570 + 78215571.

It is an arithmetic number, because the mean of its divisors is an integer number (78215571).

Almost surely, 2^156431141 is an apocalyptic number.

It is an amenable number.

156431141 is a deficient number, since it is larger than the sum of its proper divisors (1).

156431141 is an equidigital number, since it uses as much as digits as its factorization.

156431141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 156431141 is about 12507.2435412444. The cubic root of 156431141 is about 538.8167289041.

Adding to 156431141 its reverse (141134651), we get a palindrome (297565792).

The spelling of 156431141 in words is "one hundred fifty-six million, four hundred thirty-one thousand, one hundred forty-one".