121938967 has 2 divisors, whose sum is σ = 121938968. Its totient is φ = 121938966.

The previous prime is 121938959. The next prime is 121939003. The reversal of 121938967 is 769839121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121938967 - 2³ = 121938959 is a prime.

It is a super-2 number, since 2×121938967² = 29738223346054178, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121938767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60969483 + 60969484.

It is an arithmetic number, because the mean of its divisors is an integer number (60969484).

Almost surely, 2^121938967 is an apocalyptic number.

121938967 is a deficient number, since it is larger than the sum of its proper divisors (1).

121938967 is an equidigital number, since it uses as much as digits as its factorization.

121938967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 121938967 is about 11042.5978374656. The cubic root of 121938967 is about 495.8848466092.

It can be divided in two parts, 1219 and 38967, that added together give a triangular number (40186 = T₂₈₃).

The spelling of 121938967 in words is "one hundred twenty-one million, nine hundred thirty-eight thousand, nine hundred sixty-seven".