121816460 has 12 divisors (see below), whose sum is σ = 255814608. Its totient is φ = 48726576.

The previous prime is 121816459. The next prime is 121816489. The reversal of 121816460 is 64618121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3045392 + ... + 3045431.

It is an arithmetic number, because the mean of its divisors is an integer number (21317884).

Almost surely, 2^121816460 is an apocalyptic number.

121816460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121816460 is an abundant number, since it is smaller than the sum of its proper divisors (133998148).

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

121816460 is a wasteful number, since it uses less digits than its factorization.

121816460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090832 (or 6090830 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 121816460 is about 11037.0494245518. The cubic root of 121816460 is about 495.7187260165.

The spelling of 121816460 in words is "one hundred twenty-one million, eight hundred sixteen thousand, four hundred sixty".