121440718 has 12 divisors (see below), whose sum is σ = 211901832. Its totient is φ = 52045980.

The previous prime is 121440701. The next prime is 121440721. The reversal of 121440718 is 817044121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619498 + ... + 619693.

It is an arithmetic number, because the mean of its divisors is an integer number (17658486).

Almost surely, 2^121440718 is an apocalyptic number.

121440718 is a deficient number, since it is larger than the sum of its proper divisors (90461114).

121440718 is a wasteful number, since it uses less digits than its factorization.

121440718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239207 (or 1239200 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 121440718 is about 11020.0144283027. The cubic root of 121440718 is about 495.2085207928.

Adding to 121440718 its reverse (817044121), we get a palindrome (938484839).

The spelling of 121440718 in words is "one hundred twenty-one million, four hundred forty thousand, seven hundred eighteen".