156874141 has 2 divisors, whose sum is σ = 156874142. Its totient is φ = 156874140.

The previous prime is 156874139. The next prime is 156874169. The reversal of 156874141 is 141478651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123765625 + 33108516 = 11125^2 + 5754^2 .

It is a cyclic number.

It is not a de Polignac number, because 156874141 - 2¹ = 156874139 is a prime.

It is a super-2 number, since 2×156874141² = 49218992228975762, which contains 22 as substring.

Together with 156874139, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156874141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156874111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78437070 + 78437071.

It is an arithmetic number, because the mean of its divisors is an integer number (78437071).

Almost surely, 2^156874141 is an apocalyptic number.

It is an amenable number.

156874141 is a deficient number, since it is larger than the sum of its proper divisors (1).

156874141 is an equidigital number, since it uses as much as digits as its factorization.

156874141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 37.

The square root of 156874141 is about 12524.9407583429. The cubic root of 156874141 is about 539.3248776035.

The spelling of 156874141 in words is "one hundred fifty-six million, eight hundred seventy-four thousand, one hundred forty-one".