156144139 has 2 divisors, whose sum is σ = 156144140. Its totient is φ = 156144138.

The previous prime is 156144127. The next prime is 156144143. The reversal of 156144139 is 931441651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 156144139 - 2¹⁹ = 155619851 is a prime.

It is not a weakly prime, because it can be changed into another prime (156144169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78072069 + 78072070.

It is an arithmetic number, because the mean of its divisors is an integer number (78072070).

Almost surely, 2^156144139 is an apocalyptic number.

156144139 is a deficient number, since it is larger than the sum of its proper divisors (1).

156144139 is an equidigital number, since it uses as much as digits as its factorization.

156144139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 156144139 is about 12495.7648425377. The cubic root of 156144139 is about 538.4870073683.

The spelling of 156144139 in words is "one hundred fifty-six million, one hundred forty-four thousand, one hundred thirty-nine".