121936751 has 2 divisors, whose sum is σ = 121936752. Its totient is φ = 121936750.

The previous prime is 121936739. The next prime is 121936799. The reversal of 121936751 is 157639121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121936751 - 2⁶ = 121936687 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 (121936151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60968375 + 60968376.

It is an arithmetic number, because the mean of its divisors is an integer number (60968376).

Almost surely, 2^121936751 is an apocalyptic number.

121936751 is a deficient number, since it is larger than the sum of its proper divisors (1).

121936751 is an equidigital number, since it uses as much as digits as its factorization.

121936751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 35.

The square root of 121936751 is about 11042.4974983017. The cubic root of 121936751 is about 495.8818426816.

The spelling of 121936751 in words is "one hundred twenty-one million, nine hundred thirty-six thousand, seven hundred fifty-one".