121765004 has 12 divisors (see below), whose sum is σ = 213447528. Its totient is φ = 60780000.

The previous prime is 121764989. The next prime is 121765019. The reversal of 121765004 is 400567121.

It is an interprime number because it is at equal distance from previous prime (121764989) and next prime (121765019).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22922 + ... + 27729.

It is an arithmetic number, because the mean of its divisors is an integer number (17787294).

Almost surely, 2^121765004 is an apocalyptic number.

It is an amenable number.

121765004 is a deficient number, since it is larger than the sum of its proper divisors (91682524).

121765004 is a wasteful number, since it uses less digits than its factorization.

121765004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51256 (or 51254 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 121765004 is about 11034.7181205502. The cubic root of 121765004 is about 495.6489180033.

The spelling of 121765004 in words is "one hundred twenty-one million, seven hundred sixty-five thousand, four".