157904147 has 2 divisors, whose sum is σ = 157904148. Its totient is φ = 157904146.

The previous prime is 157904137. The next prime is 157904167. The reversal of 157904147 is 741409751.

157904147 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 a de Polignac number, because none of the positive numbers 2^k-157904147 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157904147.

It is not a weakly prime, because it can be changed into another prime (157904137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78952073 + 78952074.

It is an arithmetic number, because the mean of its divisors is an integer number (78952074).

Almost surely, 2^157904147 is an apocalyptic number.

157904147 is a deficient number, since it is larger than the sum of its proper divisors (1).

157904147 is an equidigital number, since it uses as much as digits as its factorization.

157904147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 157904147 is about 12565.9916839062. The cubic root of 157904147 is about 540.5026720767.

The spelling of 157904147 in words is "one hundred fifty-seven million, nine hundred four thousand, one hundred forty-seven".