156354089 has 2 divisors, whose sum is σ = 156354090. Its totient is φ = 156354088.

The previous prime is 156354073. The next prime is 156354131. The reversal of 156354089 is 980453651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155875225 + 478864 = 12485^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 156354089 - 2⁴ = 156354073 is a prime.

It is a super-2 number, since 2×156354089² = 48893202294039842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (156351089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78177044 + 78177045.

It is an arithmetic number, because the mean of its divisors is an integer number (78177045).

Almost surely, 2^156354089 is an apocalyptic number.

It is an amenable number.

156354089 is a deficient number, since it is larger than the sum of its proper divisors (1).

156354089 is an equidigital number, since it uses as much as digits as its factorization.

156354089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 156354089 is about 12504.1628668216. The cubic root of 156354089 is about 538.7282475341.

The spelling of 156354089 in words is "one hundred fifty-six million, three hundred fifty-four thousand, eighty-nine".