75470145 has 32 divisors (see below), whose sum is σ = 125193600. Its totient is φ = 38797824.

The previous prime is 75470099. The next prime is 75470167. The reversal of 75470145 is 54107457.

It is not a de Polignac number, because 75470145 - 2⁶ = 75470081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46101 + ... + 47709.

It is an arithmetic number, because the mean of its divisors is an integer number (3912300).

Almost surely, 2^75470145 is an apocalyptic number.

It is an amenable number.

75470145 is a deficient number, since it is larger than the sum of its proper divisors (49723455).

75470145 is a wasteful number, since it uses less digits than its factorization.

75470145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 75470145 is about 8687.3554664236. The cubic root of 75470145 is about 422.5956880943.

The spelling of 75470145 in words is "seventy-five million, four hundred seventy thousand, one hundred forty-five".