121090236 has 48 divisors (see below), whose sum is σ = 295325184. Its totient is φ = 38578176.

The previous prime is 121090231. The next prime is 121090253. The reversal of 121090236 is 632090121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121090231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21756 + ... + 26748.

It is an arithmetic number, because the mean of its divisors is an integer number (6152608).

Almost surely, 2^121090236 is an apocalyptic number.

It is an amenable number.

121090236 is an abundant number, since it is smaller than the sum of its proper divisors (174234948).

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

121090236 is a wasteful number, since it uses less digits than its factorization.

121090236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090 (or 5088 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 121090236 is about 11004.1008719477. The cubic root of 121090236 is about 494.7316656047.

The spelling of 121090236 in words is "one hundred twenty-one million, ninety thousand, two hundred thirty-six".