121246657 has 16 divisors (see below), whose sum is σ = 146995200. Its totient is φ = 97690320.

The previous prime is 121246637. The next prime is 121246679. The reversal of 121246657 is 756642121.

It is not a de Polignac number, because 121246657 - 2⁷ = 121246529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121246607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13944 + ... + 20902.

It is an arithmetic number, because the mean of its divisors is an integer number (9187200).

Almost surely, 2^121246657 is an apocalyptic number.

It is an amenable number.

121246657 is a deficient number, since it is larger than the sum of its proper divisors (25748543).

121246657 is a wasteful number, since it uses less digits than its factorization.

121246657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7116.

The product of its digits is 20160, while the sum is 34.

The square root of 121246657 is about 11011.2059739158. The cubic root of 121246657 is about 494.9446008130.

Adding to 121246657 its reverse (756642121), we get a palindrome (877888778).

It can be divided in two parts, 12124 and 6657, that added together give a palindrome (18781).

The spelling of 121246657 in words is "one hundred twenty-one million, two hundred forty-six thousand, six hundred fifty-seven".