121255764 has 48 divisors (see below), whose sum is σ = 342373248. Its totient is φ = 32606208.

The previous prime is 121255759. The next prime is 121255769. The reversal of 121255764 is 467552121.

It is an interprime number because it is at equal distance from previous prime (121255759) and next prime (121255769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121255769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41029 + ... + 43884.

It is an arithmetic number, because the mean of its divisors is an integer number (7132776).

Almost surely, 2^121255764 is an apocalyptic number.

121255764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121255764 is an abundant number, since it is smaller than the sum of its proper divisors (221117484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121255764 is a wasteful number, since it uses less digits than its factorization.

121255764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84944 (or 84942 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 121255764 is about 11011.6194994197. The cubic root of 121255764 is about 494.9569924883.

The spelling of 121255764 in words is "one hundred twenty-one million, two hundred fifty-five thousand, seven hundred sixty-four".