75138763 has 16 divisors (see below), whose sum is σ = 87940800. Its totient is φ = 62870400.

The previous prime is 75138757. The next prime is 75138779. The reversal of 75138763 is 36783157.

It is a cyclic number.

It is not a de Polignac number, because 75138763 - 2⁵ = 75138731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75138733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63033 + ... + 64213.

It is an arithmetic number, because the mean of its divisors is an integer number (5496300).

Almost surely, 2^75138763 is an apocalyptic number.

75138763 is a deficient number, since it is larger than the sum of its proper divisors (12802037).

75138763 is a wasteful number, since it uses less digits than its factorization.

75138763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398.

The product of its digits is 105840, while the sum is 40.

The square root of 75138763 is about 8668.2618211496. The cubic root of 75138763 is about 421.9762551871.

The spelling of 75138763 in words is "seventy-five million, one hundred thirty-eight thousand, seven hundred sixty-three".