121564230 has 32 divisors (see below), whose sum is σ = 301816800. Its totient is φ = 31299072.

The previous prime is 121564217. The next prime is 121564271. The reversal of 121564230 is 32465121.

It is a self number, because there is not a number n which added to its sum of digits gives 121564230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68995 + ... + 70734.

It is an arithmetic number, because the mean of its divisors is an integer number (9431775).

Almost surely, 2^121564230 is an apocalyptic number.

121564230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121564230 is an abundant number, since it is smaller than the sum of its proper divisors (180252570).

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

121564230 is a wasteful number, since it uses less digits than its factorization.

121564230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139768.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 121564230 is about 11025.6169895385. The cubic root of 121564230 is about 495.3763488265.

The spelling of 121564230 in words is "one hundred twenty-one million, five hundred sixty-four thousand, two hundred thirty".