75145975 has 6 divisors (see below), whose sum is σ = 93181040. Its totient is φ = 60116760.

The previous prime is 75145921. The next prime is 75146011. The reversal of 75145975 is 57954157.

It is not a de Polignac number, because 75145975 - 2⁹ = 75145463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1502895 + ... + 1502944.

Almost surely, 2^75145975 is an apocalyptic number.

75145975 is a deficient number, since it is larger than the sum of its proper divisors (18035065).

75145975 is a wasteful number, since it uses less digits than its factorization.

75145975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005849 (or 3005844 counting only the distinct ones).

The product of its digits is 220500, while the sum is 43.

The square root of 75145975 is about 8668.6778115235. The cubic root of 75145975 is about 421.9897555220.

The spelling of 75145975 in words is "seventy-five million, one hundred forty-five thousand, nine hundred seventy-five".