74120313 has 8 divisors (see below), whose sum is σ = 99482176. Its totient is φ = 49086000.

The previous prime is 74120279. The next prime is 74120339. The reversal of 74120313 is 31302147.

Added to its reverse (31302147) it gives a triangular number (105422460 = T₁₄₅₂₀).

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

It is not a de Polignac number, because 74120313 - 2¹³ = 74112121 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 74120313.

It is not an unprimeable number, because it can be changed into a prime (74120383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81358 + ... + 82263.

It is an arithmetic number, because the mean of its divisors is an integer number (12435272).

Almost surely, 2^74120313 is an apocalyptic number.

It is an amenable number.

74120313 is a deficient number, since it is larger than the sum of its proper divisors (25361863).

74120313 is a wasteful number, since it uses less digits than its factorization.

74120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163775.

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

The square root of 74120313 is about 8609.3154780157. The cubic root of 74120313 is about 420.0610512159.

Adding to 74120313 its reverse (31302147), we get a triangular number (105422460 = T₁₄₅₂₀).

The spelling of 74120313 in words is "seventy-four million, one hundred twenty thousand, three hundred thirteen".