121275967 has 2 divisors, whose sum is σ = 121275968. Its totient is φ = 121275966.

The previous prime is 121275949. The next prime is 121275997. The reversal of 121275967 is 769572121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121275967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121275997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60637983 + 60637984.

It is an arithmetic number, because the mean of its divisors is an integer number (60637984).

Almost surely, 2^121275967 is an apocalyptic number.

121275967 is a deficient number, since it is larger than the sum of its proper divisors (1).

121275967 is an equidigital number, since it uses as much as digits as its factorization.

121275967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 121275967 is about 11012.5368103812. The cubic root of 121275967 is about 494.9844800086.

The spelling of 121275967 in words is "one hundred twenty-one million, two hundred seventy-five thousand, nine hundred sixty-seven".