74307253 has 2 divisors, whose sum is σ = 74307254. Its totient is φ = 74307252.

The previous prime is 74307223. The next prime is 74307269. The reversal of 74307253 is 35270347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51811204 + 22496049 = 7198^2 + 4743^2 .

It is a cyclic number.

It is not a de Polignac number, because 74307253 - 2⁹ = 74306741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74307203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37153626 + 37153627.

It is an arithmetic number, because the mean of its divisors is an integer number (37153627).

Almost surely, 2^74307253 is an apocalyptic number.

It is an amenable number.

74307253 is a deficient number, since it is larger than the sum of its proper divisors (1).

74307253 is an equidigital number, since it uses as much as digits as its factorization.

74307253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 74307253 is about 8620.1654856505. The cubic root of 74307253 is about 420.4139022526.

The spelling of 74307253 in words is "seventy-four million, three hundred seven thousand, two hundred fifty-three".