121168590 has 16 divisors (see below), whose sum is σ = 290804688. Its totient is φ = 32311616.

The previous prime is 121168573. The next prime is 121168609. The reversal of 121168590 is 95861121.

It is a super-3 number, since 3×121168590³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2019447 + ... + 2019506.

It is an arithmetic number, because the mean of its divisors is an integer number (18175293).

Almost surely, 2^121168590 is an apocalyptic number.

121168590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121168590 is an abundant number, since it is smaller than the sum of its proper divisors (169636098).

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

121168590 is a wasteful number, since it uses less digits than its factorization.

121168590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038963.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 121168590 is about 11007.6605143872. The cubic root of 121168590 is about 494.8383514618.

It can be divided in two parts, 12116 and 8590, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 121168590 in words is "one hundred twenty-one million, one hundred sixty-eight thousand, five hundred ninety".