75038139 has 24 divisors (see below), whose sum is σ = 120998592. Its totient is φ = 44417520.

The previous prime is 75038111. The next prime is 75038143. The reversal of 75038139 is 93183057.

It is not a de Polignac number, because 75038139 - 2¹³ = 75029947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75038149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4557 + ... + 13070.

It is an arithmetic number, because the mean of its divisors is an integer number (5041608).

Almost surely, 2^75038139 is an apocalyptic number.

75038139 is a deficient number, since it is larger than the sum of its proper divisors (45960453).

75038139 is a wasteful number, since it uses less digits than its factorization.

75038139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17687 (or 17684 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 75038139 is about 8662.4557141725. The cubic root of 75038139 is about 421.7878042672.

The spelling of 75038139 in words is "seventy-five million, thirty-eight thousand, one hundred thirty-nine".