121934777 has 2 divisors, whose sum is σ = 121934778. Its totient is φ = 121934776.

The previous prime is 121934737. The next prime is 121934783. The reversal of 121934777 is 777439121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121638841 + 295936 = 11029^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 121934777 - 2¹⁸ = 121672633 is a prime.

It is not a weakly prime, because it can be changed into another prime (121934737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60967388 + 60967389.

It is an arithmetic number, because the mean of its divisors is an integer number (60967389).

Almost surely, 2^121934777 is an apocalyptic number.

It is an amenable number.

121934777 is a deficient number, since it is larger than the sum of its proper divisors (1).

121934777 is an equidigital number, since it uses as much as digits as its factorization.

121934777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 41.

The square root of 121934777 is about 11042.4081159863. The cubic root of 121934777 is about 495.8791667696.

The spelling of 121934777 in words is "one hundred twenty-one million, nine hundred thirty-four thousand, seven hundred seventy-seven".