156261151 has 2 divisors, whose sum is σ = 156261152. Its totient is φ = 156261150.

The previous prime is 156261143. The next prime is 156261163. The reversal of 156261151 is 151162651.

It is a happy number.

156261151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156261151 - 2³ = 156261143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156261121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78130575 + 78130576.

It is an arithmetic number, because the mean of its divisors is an integer number (78130576).

Almost surely, 2^156261151 is an apocalyptic number.

156261151 is a deficient number, since it is larger than the sum of its proper divisors (1).

156261151 is an equidigital number, since it uses as much as digits as its factorization.

156261151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 28.

The square root of 156261151 is about 12500.4460320422. The cubic root of 156261151 is about 538.6214850572.

The spelling of 156261151 in words is "one hundred fifty-six million, two hundred sixty-one thousand, one hundred fifty-one".