121527620 has 12 divisors (see below), whose sum is σ = 255208044. Its totient is φ = 48611040.

The previous prime is 121527619. The next prime is 121527671. The reversal of 121527620 is 26725121.

It can be written as a sum of positive squares in 2 ways, for example, as 26543104 + 94984516 = 5152^2 + 9746^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121527620.

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, 3038171 + ... + 3038210.

It is an arithmetic number, because the mean of its divisors is an integer number (21267337).

Almost surely, 2^121527620 is an apocalyptic number.

121527620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121527620 is an abundant number, since it is smaller than the sum of its proper divisors (133680424).

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

121527620 is a wasteful number, since it uses less digits than its factorization.

121527620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076390 (or 6076388 counting only the distinct ones).

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

The square root of 121527620 is about 11023.9566399728. The cubic root of 121527620 is about 495.3266150383.

The spelling of 121527620 in words is "one hundred twenty-one million, five hundred twenty-seven thousand, six hundred twenty".