121160610 has 80 divisors (see below), whose sum is σ = 329235192. Its totient is φ = 31968000.

The previous prime is 121160609. The next prime is 121160621. The reversal of 121160610 is 16061121.

It can be written as a sum of positive squares in 4 ways, for example, as 116057529 + 5103081 = 10773^2 + 2259^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 81070 + ... + 82550.

Almost surely, 2^121160610 is an apocalyptic number.

121160610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121160610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164617596).

121160610 is an abundant number, since it is smaller than the sum of its proper divisors (208074582).

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

121160610 is a wasteful number, since it uses less digits than its factorization.

121160610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 121160610 is about 11007.2980335775. The cubic root of 121160610 is about 494.8274880944.

The spelling of 121160610 in words is "one hundred twenty-one million, one hundred sixty thousand, six hundred ten".