121240086 has 16 divisors (see below), whose sum is σ = 264523968. Its totient is φ = 36739400.

The previous prime is 121240081. The next prime is 121240087. The reversal of 121240086 is 680042121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121240081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918420 + ... + 918551.

It is an arithmetic number, because the mean of its divisors is an integer number (16532748).

Almost surely, 2^121240086 is an apocalyptic number.

121240086 is an abundant number, since it is smaller than the sum of its proper divisors (143283882).

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

121240086 is a wasteful number, since it uses less digits than its factorization.

121240086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836987.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 121240086 is about 11010.9075920198. The cubic root of 121240086 is about 494.9356594263.

The spelling of 121240086 in words is "one hundred twenty-one million, two hundred forty thousand, eighty-six".