121516350 has 24 divisors (see below), whose sum is σ = 301360920. Its totient is φ = 32404320.

The previous prime is 121516349. The next prime is 121516393. The reversal of 121516350 is 53615121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121516350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404905 + ... + 405204.

It is an arithmetic number, because the mean of its divisors is an integer number (12556705).

Almost surely, 2^121516350 is an apocalyptic number.

121516350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121516350 is an abundant number, since it is smaller than the sum of its proper divisors (179844570).

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

121516350 is a wasteful number, since it uses less digits than its factorization.

121516350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810124 (or 810119 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 121516350 is about 11023.4454686364. The cubic root of 121516350 is about 495.3113030087.

The spelling of 121516350 in words is "one hundred twenty-one million, five hundred sixteen thousand, three hundred fifty".