75415813 has 8 divisors (see below), whose sum is σ = 82339776. Its totient is φ = 68503200.

The previous prime is 75415811. The next prime is 75415817. The reversal of 75415813 is 31851457.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75415813 - 2¹ = 75415811 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 (75415811) 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, 17328 + ... + 21238.

It is an arithmetic number, because the mean of its divisors is an integer number (10292472).

Almost surely, 2^75415813 is an apocalyptic number.

It is an amenable number.

75415813 is a deficient number, since it is larger than the sum of its proper divisors (6923963).

75415813 is a wasteful number, since it uses less digits than its factorization.

75415813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5675.

The product of its digits is 16800, while the sum is 34.

The square root of 75415813 is about 8684.2278298073. The cubic root of 75415813 is about 422.4942529242.

The spelling of 75415813 in words is "seventy-five million, four hundred fifteen thousand, eight hundred thirteen".