609556147 has 2 divisors, whose sum is σ = 609556148. Its totient is φ = 609556146.

The previous prime is 609556141. The next prime is 609556201. The reversal of 609556147 is 741655906.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609556147 - 2³ = 609556139 is a prime.

It is not a weakly prime, because it can be changed into another prime (609556141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304778073 + 304778074.

It is an arithmetic number, because the mean of its divisors is an integer number (304778074).

Almost surely, 2^609556147 is an apocalyptic number.

609556147 is a deficient number, since it is larger than the sum of its proper divisors (1).

609556147 is an equidigital number, since it uses as much as digits as its factorization.

609556147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 609556147 is about 24689.1908939925. The cubic root of 609556147 is about 847.8868603321.

The spelling of 609556147 in words is "six hundred nine million, five hundred fifty-six thousand, one hundred forty-seven".