121572707 has 2 divisors, whose sum is σ = 121572708. Its totient is φ = 121572706.

The previous prime is 121572679. The next prime is 121572721. The reversal of 121572707 is 707275121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121572707 - 2²² = 117378403 is a prime.

It is not a weakly prime, because it can be changed into another prime (121572007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60786353 + 60786354.

It is an arithmetic number, because the mean of its divisors is an integer number (60786354).

Almost surely, 2^121572707 is an apocalyptic number.

121572707 is a deficient number, since it is larger than the sum of its proper divisors (1).

121572707 is an equidigital number, since it uses as much as digits as its factorization.

121572707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6860, while the sum is 32.

The square root of 121572707 is about 11026.0014057681. The cubic root of 121572707 is about 495.3878631996.

The spelling of 121572707 in words is "one hundred twenty-one million, five hundred seventy-two thousand, seven hundred seven".