71451053 has 2 divisors, whose sum is σ = 71451054. Its totient is φ = 71451052.

The previous prime is 71451007. The next prime is 71451067. The reversal of 71451053 is 35015417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60248644 + 11202409 = 7762^2 + 3347^2 .

It is a cyclic number.

It is not a de Polignac number, because 71451053 - 2⁶ = 71450989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71451253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35725526 + 35725527.

It is an arithmetic number, because the mean of its divisors is an integer number (35725527).

Almost surely, 2^71451053 is an apocalyptic number.

It is an amenable number.

71451053 is a deficient number, since it is larger than the sum of its proper divisors (1).

71451053 is an equidigital number, since it uses as much as digits as its factorization.

71451053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 71451053 is about 8452.8724703499. The cubic root of 71451053 is about 414.9567923275.

The spelling of 71451053 in words is "seventy-one million, four hundred fifty-one thousand, fifty-three".