156015149 has 2 divisors, whose sum is σ = 156015150. Its totient is φ = 156015148.

The previous prime is 156015133. The next prime is 156015151. The reversal of 156015149 is 941510651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95844100 + 60171049 = 9790^2 + 7757^2 .

It is a cyclic number.

It is not a de Polignac number, because 156015149 - 2⁴ = 156015133 is a prime.

Together with 156015151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156015179) 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, 78007574 + 78007575.

It is an arithmetic number, because the mean of its divisors is an integer number (78007575).

Almost surely, 2^156015149 is an apocalyptic number.

It is an amenable number.

156015149 is a deficient number, since it is larger than the sum of its proper divisors (1).

156015149 is an equidigital number, since it uses as much as digits as its factorization.

156015149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 156015149 is about 12490.6024274252. The cubic root of 156015149 is about 538.3386859199.

The spelling of 156015149 in words is "one hundred fifty-six million, fifteen thousand, one hundred forty-nine".