75280113 has 6 divisors (see below), whose sum is σ = 108737954. Its totient is φ = 50186736.

The previous prime is 75280111. The next prime is 75280129. The reversal of 75280113 is 31108257.

It can be written as a sum of positive squares in only one way, i.e., 60093504 + 15186609 = 7752^2 + 3897^2 .

It is not a de Polignac number, because 75280113 - 2¹ = 75280111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75280111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4182220 + ... + 4182237.

Almost surely, 2^75280113 is an apocalyptic number.

It is an amenable number.

75280113 is a deficient number, since it is larger than the sum of its proper divisors (33457841).

75280113 is a wasteful number, since it uses less digits than its factorization.

75280113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8364463 (or 8364460 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 75280113 is about 8676.4112973049. The cubic root of 75280113 is about 422.2406947315.

The spelling of 75280113 in words is "seventy-five million, two hundred eighty thousand, one hundred thirteen".