121565060 has 12 divisors (see below), whose sum is σ = 255286668. Its totient is φ = 48626016.

The previous prime is 121565057. The next prime is 121565063. The reversal of 121565060 is 60565121.

It is an interprime number because it is at equal distance from previous prime (121565057) and next prime (121565063).

It can be written as a sum of positive squares in 2 ways, for example, as 54848836 + 66716224 = 7406^2 + 8168^2 .

It is not an unprimeable number, because it can be changed into a prime (121565063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3039107 + ... + 3039146.

It is an arithmetic number, because the mean of its divisors is an integer number (21273889).

Almost surely, 2^121565060 is an apocalyptic number.

121565060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121565060 is an abundant number, since it is smaller than the sum of its proper divisors (133721608).

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

121565060 is a wasteful number, since it uses less digits than its factorization.

121565060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6078262 (or 6078260 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 121565060 is about 11025.6546290912. The cubic root of 121565060 is about 495.3774762454.

The spelling of 121565060 in words is "one hundred twenty-one million, five hundred sixty-five thousand, sixty".