147739057 has 2 divisors, whose sum is σ = 147739058. Its totient is φ = 147739056.

The previous prime is 147738989. The next prime is 147739103. The reversal of 147739057 is 750937741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81739681 + 65999376 = 9041^2 + 8124^2 .

It is a cyclic number.

It is not a de Polignac number, because 147739057 - 2²⁷ = 13521329 is a prime.

It is not a weakly prime, because it can be changed into another prime (147734057) 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, 73869528 + 73869529.

It is an arithmetic number, because the mean of its divisors is an integer number (73869529).

Almost surely, 2^147739057 is an apocalyptic number.

It is an amenable number.

147739057 is a deficient number, since it is larger than the sum of its proper divisors (1).

147739057 is an equidigital number, since it uses as much as digits as its factorization.

147739057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 147739057 is about 12154.7956379365. The cubic root of 147739057 is about 528.6461912093.

The spelling of 147739057 in words is "one hundred forty-seven million, seven hundred thirty-nine thousand, fifty-seven".