121507017 has 4 divisors (see below), whose sum is σ = 162009360. Its totient is φ = 81004676.

The previous prime is 121506997. The next prime is 121507027. The reversal of 121507017 is 710705121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121507017 - 2⁸ = 121506761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121507027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20251167 + ... + 20251172.

It is an arithmetic number, because the mean of its divisors is an integer number (40502340).

Almost surely, 2^121507017 is an apocalyptic number.

It is an amenable number.

121507017 is a deficient number, since it is larger than the sum of its proper divisors (40502343).

121507017 is an equidigital number, since it uses as much as digits as its factorization.

121507017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40502342.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 121507017 is about 11023.0221355126. The cubic root of 121507017 is about 495.2986219751.

The spelling of 121507017 in words is "one hundred twenty-one million, five hundred seven thousand, seventeen".