71260457 has 2 divisors, whose sum is σ = 71260458. Its totient is φ = 71260456.

The previous prime is 71260451. The next prime is 71260471. The reversal of 71260457 is 75406217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 1771561 = 8336^2 + 1331^2 .

It is a cyclic number.

It is not a de Polignac number, because 71260457 - 2¹⁴ = 71244073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71260451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35630228 + 35630229.

It is an arithmetic number, because the mean of its divisors is an integer number (35630229).

Almost surely, 2^71260457 is an apocalyptic number.

It is an amenable number.

71260457 is a deficient number, since it is larger than the sum of its proper divisors (1).

71260457 is an equidigital number, since it uses as much as digits as its factorization.

71260457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 71260457 is about 8441.5909045630. The cubic root of 71260457 is about 414.5874974075.

Subtracting 71260457 from its reverse (75406217), we obtain a triangular number (4145760 = T₂₈₇₉).

It can be divided in two parts, 71260 and 457, that added together give a palindrome (71717).

The spelling of 71260457 in words is "seventy-one million, two hundred sixty thousand, four hundred fifty-seven".