121846257 has 12 divisors (see below), whose sum is σ = 189538804. Its totient is φ = 74982240.

The previous prime is 121846253. The next prime is 121846331. The reversal of 121846257 is 752648121.

121846257 is a `hidden beast` number, since 1 + 21 + 8 + 4 + 625 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71166096 + 50680161 = 8436^2 + 7119^2 .

It is not a de Polignac number, because 121846257 - 2² = 121846253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121846253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520594 + ... + 520827.

Almost surely, 2^121846257 is an apocalyptic number.

It is an amenable number.

121846257 is a deficient number, since it is larger than the sum of its proper divisors (67692547).

121846257 is a wasteful number, since it uses less digits than its factorization.

121846257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041440 (or 1041437 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 121846257 is about 11038.3992045948. The cubic root of 121846257 is about 495.7591412628.

The spelling of 121846257 in words is "one hundred twenty-one million, eight hundred forty-six thousand, two hundred fifty-seven".