121416375 has 64 divisors (see below), whose sum is σ = 212284800. Its totient is φ = 61568000.

The previous prime is 121416371. The next prime is 121416377. The reversal of 121416375 is 573614121.

It is not a de Polignac number, because 121416375 - 2² = 121416371 is a prime.

It is a super-2 number, since 2×121416375² = 29483872236281250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121416371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 814801 + ... + 814949.

It is an arithmetic number, because the mean of its divisors is an integer number (3316950).

Almost surely, 2^121416375 is an apocalyptic number.

121416375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121416375 is a deficient number, since it is larger than the sum of its proper divisors (90868425).

121416375 is a wasteful number, since it uses less digits than its factorization.

121416375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 251 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 121416375 is about 11018.9098825610. The cubic root of 121416375 is about 495.1754301162.

The spelling of 121416375 in words is "one hundred twenty-one million, four hundred sixteen thousand, three hundred seventy-five".