130723057 has 2 divisors, whose sum is σ = 130723058. Its totient is φ = 130723056.

The previous prime is 130723031. The next prime is 130723157. The reversal of 130723057 is 750327031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82156096 + 48566961 = 9064^2 + 6969^2 .

It is a cyclic number.

It is not a de Polignac number, because 130723057 - 2⁷ = 130722929 is a prime.

It is not a weakly prime, because it can be changed into another prime (130723157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65361528 + 65361529.

It is an arithmetic number, because the mean of its divisors is an integer number (65361529).

Almost surely, 2^130723057 is an apocalyptic number.

It is an amenable number.

130723057 is a deficient number, since it is larger than the sum of its proper divisors (1).

130723057 is an equidigital number, since it uses as much as digits as its factorization.

130723057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 130723057 is about 11433.4184301984. The cubic root of 130723057 is about 507.5171608812.

It can be divided in two parts, 13072 and 3057, that added together give a square (16129 = 127²).

The spelling of 130723057 in words is "one hundred thirty million, seven hundred twenty-three thousand, fifty-seven".