75149805 has 8 divisors (see below), whose sum is σ = 120239712. Its totient is φ = 40079888.

The previous prime is 75149791. The next prime is 75149819. The reversal of 75149805 is 50894157.

It is an interprime number because it is at equal distance from previous prime (75149791) and next prime (75149819).

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 75149805 - 2⁵ = 75149773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504979 + ... + 2505008.

It is an arithmetic number, because the mean of its divisors is an integer number (15029964).

Almost surely, 2^75149805 is an apocalyptic number.

It is an amenable number.

75149805 is a deficient number, since it is larger than the sum of its proper divisors (45089907).

75149805 is a wasteful number, since it uses less digits than its factorization.

75149805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009995.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 75149805 is about 8668.8987189839. The cubic root of 75149805 is about 421.9969246498.

The spelling of 75149805 in words is "seventy-five million, one hundred forty-nine thousand, eight hundred five".