75270961 has 4 divisors (see below), whose sum is σ = 76546800. Its totient is φ = 73995124.

The previous prime is 75270929. The next prime is 75270967. The reversal of 75270961 is 16907257.

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 75270961 - 2⁵ = 75270929 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 75270961.

It is not an unprimeable number, because it can be changed into a prime (75270967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637831 + ... + 637948.

It is an arithmetic number, because the mean of its divisors is an integer number (19136700).

Almost surely, 2^75270961 is an apocalyptic number.

It is an amenable number.

75270961 is a deficient number, since it is larger than the sum of its proper divisors (1275839).

75270961 is a wasteful number, since it uses less digits than its factorization.

75270961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275838.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 75270961 is about 8675.8838742805. The cubic root of 75270961 is about 422.2235830699.

The spelling of 75270961 in words is "seventy-five million, two hundred seventy thousand, nine hundred sixty-one".