74257315 has 8 divisors (see below), whose sum is σ = 97209648. Its totient is φ = 54005280.

The previous prime is 74257297. The next prime is 74257319. The reversal of 74257315 is 51375247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74257315 - 2²¹ = 72160163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74257319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675012 + ... + 675121.

It is an arithmetic number, because the mean of its divisors is an integer number (12151206).

Almost surely, 2^74257315 is an apocalyptic number.

74257315 is a deficient number, since it is larger than the sum of its proper divisors (22952333).

74257315 is a wasteful number, since it uses less digits than its factorization.

74257315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350149.

The product of its digits is 29400, while the sum is 34.

The square root of 74257315 is about 8617.2684187044. The cubic root of 74257315 is about 420.3197017832.

The spelling of 74257315 in words is "seventy-four million, two hundred fifty-seven thousand, three hundred fifteen".