75418157 has 4 divisors (see below), whose sum is σ = 75448800. Its totient is φ = 75387516.

The previous prime is 75418151. The next prime is 75418177. The reversal of 75418157 is 75181457.

It is a happy number.

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 not a de Polignac number, because 75418157 - 2¹⁸ = 75156013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75418157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75418151) 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, 11273 + ... + 16670.

It is an arithmetic number, because the mean of its divisors is an integer number (18862200).

Almost surely, 2^75418157 is an apocalyptic number.

It is an amenable number.

75418157 is a deficient number, since it is larger than the sum of its proper divisors (30643).

75418157 is a wasteful number, since it uses less digits than its factorization.

75418157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30642.

The product of its digits is 39200, while the sum is 38.

The square root of 75418157 is about 8684.3627860655. The cubic root of 75418157 is about 422.4986300622.

The spelling of 75418157 in words is "seventy-five million, four hundred eighteen thousand, one hundred fifty-seven".