71012453 has 2 divisors, whose sum is σ = 71012454. Its totient is φ = 71012452.

The previous prime is 71012449. The next prime is 71012471. The reversal of 71012453 is 35421017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70930084 + 82369 = 8422^2 + 287^2 .

It is a cyclic number.

It is not a de Polignac number, because 71012453 - 2² = 71012449 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71012153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35506226 + 35506227.

It is an arithmetic number, because the mean of its divisors is an integer number (35506227).

Almost surely, 2^71012453 is an apocalyptic number.

It is an amenable number.

71012453 is a deficient number, since it is larger than the sum of its proper divisors (1).

71012453 is an equidigital number, since it uses as much as digits as its factorization.

71012453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 71012453 is about 8426.8886903768. Note that the first 3 decimals coincide. The cubic root of 71012453 is about 414.1059827305.

The spelling of 71012453 in words is "seventy-one million, twelve thousand, four hundred fifty-three".