306155147 has 2 divisors, whose sum is σ = 306155148. Its totient is φ = 306155146.

The previous prime is 306155123. The next prime is 306155149. The reversal of 306155147 is 741551603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 306155147 - 2²² = 301960843 is a prime.

Together with 306155149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (306155149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153077573 + 153077574.

It is an arithmetic number, because the mean of its divisors is an integer number (153077574).

Almost surely, 2^306155147 is an apocalyptic number.

306155147 is a deficient number, since it is larger than the sum of its proper divisors (1).

306155147 is an equidigital number, since it uses as much as digits as its factorization.

306155147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 306155147 is about 17497.2897044085. The cubic root of 306155147 is about 673.9802779320.

The spelling of 306155147 in words is "three hundred six million, one hundred fifty-five thousand, one hundred forty-seven".