156196441 has 2 divisors, whose sum is σ = 156196442. Its totient is φ = 156196440.

The previous prime is 156196433. The next prime is 156196451. The reversal of 156196441 is 144691651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138556441 + 17640000 = 11771^2 + 4200^2 .

It is a cyclic number.

It is not a de Polignac number, because 156196441 - 2³ = 156196433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156196441.

It is not a weakly prime, because it can be changed into another prime (156196451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78098220 + 78098221.

It is an arithmetic number, because the mean of its divisors is an integer number (78098221).

Almost surely, 2^156196441 is an apocalyptic number.

It is an amenable number.

156196441 is a deficient number, since it is larger than the sum of its proper divisors (1).

156196441 is an equidigital number, since it uses as much as digits as its factorization.

156196441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 156196441 is about 12497.8574563803. The cubic root of 156196441 is about 538.5471244790.

The spelling of 156196441 in words is "one hundred fifty-six million, one hundred ninety-six thousand, four hundred forty-one".