74312151 has 16 divisors (see below), whose sum is σ = 105126624. Its totient is φ = 46531584.

The previous prime is 74312129. The next prime is 74312159. The reversal of 74312151 is 15121347.

74312151 = T₁₅₃ + T₁₅₄ + ... + T₇₆₅.

It is not a de Polignac number, because 74312151 - 2⁶ = 74312087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74312159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30075 + ... + 32451.

It is an arithmetic number, because the mean of its divisors is an integer number (6570414).

Almost surely, 2^74312151 is an apocalyptic number.

74312151 is a deficient number, since it is larger than the sum of its proper divisors (30814473).

74312151 is a wasteful number, since it uses less digits than its factorization.

74312151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010.

The product of its digits is 840, while the sum is 24.

The square root of 74312151 is about 8620.4495822434. The cubic root of 74312151 is about 420.4231393144.

Adding to 74312151 its reverse (15121347), we get a palindrome (89433498).

The spelling of 74312151 in words is "seventy-four million, three hundred twelve thousand, one hundred fifty-one".