156361123 has 2 divisors, whose sum is σ = 156361124. Its totient is φ = 156361122.

The previous prime is 156361097. The next prime is 156361129. The reversal of 156361123 is 321163651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 156361123 - 2⁵ = 156361091 is a prime.

It is a super-2 number, since 2×156361123² = 48897601571642258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156361091 and 156361100.

It is not a weakly prime, because it can be changed into another prime (156361129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78180561 + 78180562.

It is an arithmetic number, because the mean of its divisors is an integer number (78180562).

Almost surely, 2^156361123 is an apocalyptic number.

156361123 is a deficient number, since it is larger than the sum of its proper divisors (1).

156361123 is an equidigital number, since it uses as much as digits as its factorization.

156361123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 156361123 is about 12504.4441299883. Note that the first 3 decimals coincide. The cubic root of 156361123 is about 538.7363261154.

The spelling of 156361123 in words is "one hundred fifty-six million, three hundred sixty-one thousand, one hundred twenty-three".