1240770121 has 8 divisors (see below), whose sum is σ = 1319146560. Its totient is φ = 1164429552.

The previous prime is 1240770107. The next prime is 1240770131. The reversal of 1240770121 is 1210770421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240770121 - 2⁹ = 1240769609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240770131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507711 + ... + 510148.

It is an arithmetic number, because the mean of its divisors is an integer number (164893320).

Almost surely, 2^1240770121 is an apocalyptic number.

It is an amenable number.

1240770121 is a deficient number, since it is larger than the sum of its proper divisors (78376439).

1240770121 is a wasteful number, since it uses less digits than its factorization.

1240770121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017935.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 1240770121 is about 35224.5670094041. The cubic root of 1240770121 is about 1074.5594361274.

It can be divided in two parts, 12407 and 70121, that added together give a palindrome (82528).

The spelling of 1240770121 in words is "one billion, two hundred forty million, seven hundred seventy thousand, one hundred twenty-one".