121497375 has 32 divisors (see below), whose sum is σ = 203067072. Its totient is φ = 64512000.

The previous prime is 121497367. The next prime is 121497377. The reversal of 121497375 is 573794121.

It is not a de Polignac number, because 121497375 - 2³ = 121497367 is a prime.

It is a super-2 number, since 2×121497375² = 29523224263781250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121497377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104799 + ... + 105951.

It is an arithmetic number, because the mean of its divisors is an integer number (6345846).

Almost surely, 2^121497375 is an apocalyptic number.

121497375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121497375 is a deficient number, since it is larger than the sum of its proper divisors (81569697).

121497375 is a wasteful number, since it uses less digits than its factorization.

121497375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1442 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 121497375 is about 11022.5847694631. The cubic root of 121497375 is about 495.2855204118.

It can be divided in two parts, 1214 and 97375, that added together give a palindrome (98589).

The spelling of 121497375 in words is "one hundred twenty-one million, four hundred ninety-seven thousand, three hundred seventy-five".