71452657 has 2 divisors, whose sum is σ = 71452658. Its totient is φ = 71452656.

The previous prime is 71452637. The next prime is 71452663. The reversal of 71452657 is 75625417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58232161 + 13220496 = 7631^2 + 3636^2 .

It is a cyclic number.

It is not a de Polignac number, because 71452657 - 2⁷ = 71452529 is a prime.

It is not a weakly prime, because it can be changed into another prime (71452637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35726328 + 35726329.

It is an arithmetic number, because the mean of its divisors is an integer number (35726329).

Almost surely, 2^71452657 is an apocalyptic number.

It is an amenable number.

71452657 is a deficient number, since it is larger than the sum of its proper divisors (1).

71452657 is an equidigital number, since it uses as much as digits as its factorization.

71452657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 37.

The square root of 71452657 is about 8452.9673488072. The cubic root of 71452657 is about 414.9598974168.

The spelling of 71452657 in words is "seventy-one million, four hundred fifty-two thousand, six hundred fifty-seven".