121456799 has 2 divisors, whose sum is σ = 121456800. Its totient is φ = 121456798.

The previous prime is 121456763. The next prime is 121456817. The reversal of 121456799 is 997654121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121456799 - 2¹² = 121452703 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 (121456739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60728399 + 60728400.

It is an arithmetic number, because the mean of its divisors is an integer number (60728400).

Almost surely, 2^121456799 is an apocalyptic number.

121456799 is a deficient number, since it is larger than the sum of its proper divisors (1).

121456799 is an equidigital number, since it uses as much as digits as its factorization.

121456799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 121456799 is about 11020.7440311442. The cubic root of 121456799 is about 495.2303780877.

The spelling of 121456799 in words is "one hundred twenty-one million, four hundred fifty-six thousand, seven hundred ninety-nine".