121942259 has 2 divisors, whose sum is σ = 121942260. Its totient is φ = 121942258.

The previous prime is 121942253. The next prime is 121942283. The reversal of 121942259 is 952249121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121942259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121942253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60971129 + 60971130.

It is an arithmetic number, because the mean of its divisors is an integer number (60971130).

Almost surely, 2^121942259 is an apocalyptic number.

121942259 is a deficient number, since it is larger than the sum of its proper divisors (1).

121942259 is an equidigital number, since it uses as much as digits as its factorization.

121942259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 121942259 is about 11042.7468955872. The cubic root of 121942259 is about 495.8893090553.

The spelling of 121942259 in words is "one hundred twenty-one million, nine hundred forty-two thousand, two hundred fifty-nine".