75157613 has 4 divisors (see below), whose sum is σ = 75472320. Its totient is φ = 74842908.

The previous prime is 75157603. The next prime is 75157631. The reversal of 75157613 is 31675157.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75157613 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 (75157603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156995 + ... + 157472.

It is an arithmetic number, because the mean of its divisors is an integer number (18868080).

Almost surely, 2^75157613 is an apocalyptic number.

It is an amenable number.

75157613 is a deficient number, since it is larger than the sum of its proper divisors (314707).

75157613 is a wasteful number, since it uses less digits than its factorization.

75157613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314706.

The product of its digits is 22050, while the sum is 35.

The square root of 75157613 is about 8669.3490528413. The cubic root of 75157613 is about 422.0115391827.

The spelling of 75157613 in words is "seventy-five million, one hundred fifty-seven thousand, six hundred thirteen".