75133297 has 4 divisors (see below), whose sum is σ = 75461620. Its totient is φ = 74804976.

The previous prime is 75133291. The next prime is 75133301. The reversal of 75133297 is 79233157.

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 47665216 + 27468081 = 6904^2 + 5241^2 .

It is a cyclic number.

It is not a de Polignac number, because 75133297 - 2¹⁹ = 74609009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75133291) 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, 163818 + ... + 164275.

It is an arithmetic number, because the mean of its divisors is an integer number (18865405).

Almost surely, 2^75133297 is an apocalyptic number.

It is an amenable number.

75133297 is a deficient number, since it is larger than the sum of its proper divisors (328323).

75133297 is a wasteful number, since it uses less digits than its factorization.

75133297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328322.

The product of its digits is 39690, while the sum is 37.

The square root of 75133297 is about 8667.9465272924. The cubic root of 75133297 is about 421.9660226606.

The spelling of 75133297 in words is "seventy-five million, one hundred thirty-three thousand, two hundred ninety-seven".