121499057 has 2 divisors, whose sum is σ = 121499058. Its totient is φ = 121499056.

The previous prime is 121499047. The next prime is 121499099. The reversal of 121499057 is 750994121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105185536 + 16313521 = 10256^2 + 4039^2 .

It is a cyclic number.

It is not a de Polignac number, because 121499057 - 2⁸ = 121498801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121499057.

It is not a weakly prime, because it can be changed into another prime (121499047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60749528 + 60749529.

It is an arithmetic number, because the mean of its divisors is an integer number (60749529).

Almost surely, 2^121499057 is an apocalyptic number.

It is an amenable number.

121499057 is a deficient number, since it is larger than the sum of its proper divisors (1).

121499057 is an equidigital number, since it uses as much as digits as its factorization.

121499057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 121499057 is about 11022.6610670926. The cubic root of 121499057 is about 495.2878059657.

The spelling of 121499057 in words is "one hundred twenty-one million, four hundred ninety-nine thousand, fifty-seven".