975421144 has 8 divisors (see below), whose sum is σ = 1828914660. Its totient is φ = 487710568.

The previous prime is 975421123. The next prime is 975421157. The reversal of 975421144 is 441124579.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60963814 + ... + 60963829.

Almost surely, 2^975421144 is an apocalyptic number.

It is an amenable number.

975421144 is a deficient number, since it is larger than the sum of its proper divisors (853493516).

975421144 is a wasteful number, since it uses less digits than its factorization.

975421144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121927649 (or 121927645 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 975421144 is about 31231.7329650469. The cubic root of 975421144 is about 991.7389916634.

The spelling of 975421144 in words is "nine hundred seventy-five million, four hundred twenty-one thousand, one hundred forty-four".