75136138 has 16 divisors (see below), whose sum is σ = 140514624. Its totient is φ = 29273760.

The previous prime is 75136133. The next prime is 75136151. The reversal of 75136138 is 83163157.

It is not an unprimeable number, because it can be changed into a prime (75136133) 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, 243795 + ... + 244102.

It is an arithmetic number, because the mean of its divisors is an integer number (8782164).

Almost surely, 2^75136138 is an apocalyptic number.

75136138 is a deficient number, since it is larger than the sum of its proper divisors (65378486).

75136138 is a wasteful number, since it uses less digits than its factorization.

75136138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487917.

The product of its digits is 15120, while the sum is 34.

The square root of 75136138 is about 8668.1104053882. The cubic root of 75136138 is about 421.9713411653.

The spelling of 75136138 in words is "seventy-five million, one hundred thirty-six thousand, one hundred thirty-eight".