1240144122 has 32 divisors (see below), whose sum is σ = 2835937152. Its totient is φ = 354161664.

The previous prime is 1240144109. The next prime is 1240144141. The reversal of 1240144122 is 2214410421.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106038 + ... + 117150.

It is an arithmetic number, because the mean of its divisors is an integer number (88623036).

Almost surely, 2^1240144122 is an apocalyptic number.

1240144122 is an abundant number, since it is smaller than the sum of its proper divisors (1595793030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240144122 is a wasteful number, since it uses less digits than its factorization.

1240144122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13782.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1240144122 is about 35215.6800587466. The cubic root of 1240144122 is about 1074.3786918516.

Adding to 1240144122 its reverse (2214410421), we get a palindrome (3454554543).

The spelling of 1240144122 in words is "one billion, two hundred forty million, one hundred forty-four thousand, one hundred twenty-two".