121505060 has 12 divisors (see below), whose sum is σ = 255160668. Its totient is φ = 48602016.

The previous prime is 121505053. The next prime is 121505063. The reversal of 121505060 is 60505121.

It can be written as a sum of positive squares in 2 ways, for example, as 89605156 + 31899904 = 9466^2 + 5648^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6075253 = 121505060 / (1 + 2 + 1 + 5 + 0 + 5 + 0 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (121505063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037607 + ... + 3037646.

It is an arithmetic number, because the mean of its divisors is an integer number (21263389).

Almost surely, 2^121505060 is an apocalyptic number.

121505060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121505060 is an abundant number, since it is smaller than the sum of its proper divisors (133655608).

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

121505060 is a wasteful number, since it uses less digits than its factorization.

121505060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075262 (or 6075260 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 121505060 is about 11022.9333663957. The cubic root of 121505060 is about 495.2959628568.

The spelling of 121505060 in words is "one hundred twenty-one million, five hundred five thousand, sixty".