75132399 has 8 divisors (see below), whose sum is σ = 100394752. Its totient is φ = 49979160.

The previous prime is 75132389. The next prime is 75132427. The reversal of 75132399 is 99323157.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75132399 - 2⁸ = 75132143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75132319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25657 + ... + 28434.

It is an arithmetic number, because the mean of its divisors is an integer number (12549344).

Almost surely, 2^75132399 is an apocalyptic number.

75132399 is a deficient number, since it is larger than the sum of its proper divisors (25262353).

75132399 is a wasteful number, since it uses less digits than its factorization.

75132399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54557.

The product of its digits is 51030, while the sum is 39.

The square root of 75132399 is about 8667.8947270949. The cubic root of 75132399 is about 421.9643415285.

The spelling of 75132399 in words is "seventy-five million, one hundred thirty-two thousand, three hundred ninety-nine".