74609153 has 4 divisors (see below), whose sum is σ = 74874948. Its totient is φ = 74343360.

The previous prime is 74609147. The next prime is 74609167. The reversal of 74609153 is 35190647.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58553104 + 16056049 = 7652^2 + 4007^2 .

It is a cyclic number.

It is not a de Polignac number, because 74609153 - 2⁶ = 74609089 is a prime.

It is a super-2 number, since 2×74609153² = 11133051422754818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74609113) 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, 132476 + ... + 133037.

It is an arithmetic number, because the mean of its divisors is an integer number (18718737).

Almost surely, 2^74609153 is an apocalyptic number.

It is an amenable number.

74609153 is a deficient number, since it is larger than the sum of its proper divisors (265795).

74609153 is a wasteful number, since it uses less digits than its factorization.

74609153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265794.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 74609153 is about 8637.6589999837. The cubic root of 74609153 is about 420.9824939168.

The spelling of 74609153 in words is "seventy-four million, six hundred nine thousand, one hundred fifty-three".