74102313 has 4 divisors (see below), whose sum is σ = 98803088. Its totient is φ = 49401540.

The previous prime is 74102257. The next prime is 74102323. The reversal of 74102313 is 31320147.

Added to its reverse (31320147) it gives a triangular number (105422460 = T₁₄₅₂₀).

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 74102313 - 2⁸ = 74102057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74102313.

It is not an unprimeable number, because it can be changed into a prime (74102323) 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 3 ways as a sum of consecutive naturals, for example, 12350383 + ... + 12350388.

It is an arithmetic number, because the mean of its divisors is an integer number (24700772).

Almost surely, 2^74102313 is an apocalyptic number.

It is an amenable number.

74102313 is a deficient number, since it is larger than the sum of its proper divisors (24700775).

74102313 is a wasteful number, since it uses less digits than its factorization.

74102313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24700774.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 74102313 is about 8608.2700352626. The cubic root of 74102313 is about 420.0270447438.

Adding to 74102313 its reverse (31320147), we get a triangular number (105422460 = T₁₄₅₂₀).

The spelling of 74102313 in words is "seventy-four million, one hundred two thousand, three hundred thirteen".