147931057 has 2 divisors, whose sum is σ = 147931058. Its totient is φ = 147931056.

The previous prime is 147931037. The next prime is 147931061. The reversal of 147931057 is 750139741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 48011041 = 9996^2 + 6929^2 .

It is a cyclic number.

It is not a de Polignac number, because 147931057 - 2¹¹ = 147929009 is a prime.

It is not a weakly prime, because it can be changed into another prime (147931027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73965528 + 73965529.

It is an arithmetic number, because the mean of its divisors is an integer number (73965529).

Almost surely, 2^147931057 is an apocalyptic number.

It is an amenable number.

147931057 is a deficient number, since it is larger than the sum of its proper divisors (1).

147931057 is an equidigital number, since it uses as much as digits as its factorization.

147931057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 147931057 is about 12162.6911906864. The cubic root of 147931057 is about 528.8750996037.

The spelling of 147931057 in words is "one hundred forty-seven million, nine hundred thirty-one thousand, fifty-seven".