121538675 has 6 divisors (see below), whose sum is σ = 150707988. Its totient is φ = 97230920.

The previous prime is 121538671. The next prime is 121538701. The reversal of 121538675 is 576835121.

It is not a de Polignac number, because 121538675 - 2² = 121538671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121538671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2430749 + ... + 2430798.

It is an arithmetic number, because the mean of its divisors is an integer number (25117998).

Almost surely, 2^121538675 is an apocalyptic number.

121538675 is a deficient number, since it is larger than the sum of its proper divisors (29169313).

121538675 is an equidigital number, since it uses as much as digits as its factorization.

121538675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861557 (or 4861552 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 121538675 is about 11024.4580365658. The cubic root of 121538675 is about 495.3416340375.

The spelling of 121538675 in words is "one hundred twenty-one million, five hundred thirty-eight thousand, six hundred seventy-five".