74905153 has 4 divisors (see below), whose sum is σ = 74988288. Its totient is φ = 74822020.

The previous prime is 74905151. The next prime is 74905189. The reversal of 74905153 is 35150947.

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 a cyclic number.

It is not a de Polignac number, because 74905153 - 2¹ = 74905151 is a prime.

It is a super-3 number, since 3×74905153³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74905151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40201 + ... + 42022.

It is an arithmetic number, because the mean of its divisors is an integer number (18747072).

Almost surely, 2^74905153 is an apocalyptic number.

It is an amenable number.

74905153 is a deficient number, since it is larger than the sum of its proper divisors (83135).

74905153 is an equidigital number, since it uses as much as digits as its factorization.

74905153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83134.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 74905153 is about 8654.7763113786. The cubic root of 74905153 is about 421.5384864201.

The spelling of 74905153 in words is "seventy-four million, nine hundred five thousand, one hundred fifty-three".