121615763 has 8 divisors (see below), whose sum is σ = 125932800. Its totient is φ = 117307008.

The previous prime is 121615733. The next prime is 121615771. The reversal of 121615763 is 367516121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121615763 - 2²⁶ = 54506899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121615723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53198 + ... + 55436.

It is an arithmetic number, because the mean of its divisors is an integer number (15741600).

Almost surely, 2^121615763 is an apocalyptic number.

121615763 is a deficient number, since it is larger than the sum of its proper divisors (4317037).

121615763 is a wasteful number, since it uses less digits than its factorization.

121615763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141.

The product of its digits is 7560, while the sum is 32.

The square root of 121615763 is about 11027.9537086442. The cubic root of 121615763 is about 495.4463382276.

The spelling of 121615763 in words is "one hundred twenty-one million, six hundred fifteen thousand, seven hundred sixty-three".