121865762 has 16 divisors (see below), whose sum is σ = 188811000. Its totient is φ = 58960512.

The previous prime is 121865761. The next prime is 121865773. The reversal of 121865762 is 267568121.

It can be written as a sum of positive squares in 4 ways, for example, as 87067561 + 34798201 = 9331^2 + 5899^2 .

It is not an unprimeable number, because it can be changed into a prime (121865761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137 + ... + 15612.

Almost surely, 2^121865762 is an apocalyptic number.

121865762 is a deficient number, since it is larger than the sum of its proper divisors (66945238).

121865762 is a wasteful number, since it uses less digits than its factorization.

121865762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15877.

The product of its digits is 40320, while the sum is 38.

The square root of 121865762 is about 11039.2826759713. The cubic root of 121865762 is about 495.7855933573.

The spelling of 121865762 in words is "one hundred twenty-one million, eight hundred sixty-five thousand, seven hundred sixty-two".