74675145 has 64 divisors (see below), whose sum is σ = 130636800. Its totient is φ = 36341760.

The previous prime is 74675123. The next prime is 74675147. The reversal of 74675145 is 54157647.

It is not a de Polignac number, because 74675145 - 2⁵ = 74675113 is a prime.

Its product of digits (117600) is a multiple of the sum of its prime divisors (210).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74675147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 945216 + ... + 945294.

It is an arithmetic number, because the mean of its divisors is an integer number (2041200).

Almost surely, 2^74675145 is an apocalyptic number.

It is an amenable number.

74675145 is a deficient number, since it is larger than the sum of its proper divisors (55961655).

74675145 is a wasteful number, since it uses less digits than its factorization.

74675145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210.

The product of its digits is 117600, while the sum is 39.

The square root of 74675145 is about 8641.4781721648. The cubic root of 74675145 is about 421.1065773959.

The spelling of 74675145 in words is "seventy-four million, six hundred seventy-five thousand, one hundred forty-five".