1240134142 has 32 divisors (see below), whose sum is σ = 2118211200. Its totient is φ = 539807328.

The previous prime is 1240134131. The next prime is 1240134169. The reversal of 1240134142 is 2414310421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106609 + ... + 117667.

It is an arithmetic number, because the mean of its divisors is an integer number (66194100).

Almost surely, 2^1240134142 is an apocalyptic number.

1240134142 is a deficient number, since it is larger than the sum of its proper divisors (878077058).

1240134142 is a wasteful number, since it uses less digits than its factorization.

1240134142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11320.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1240134142 is about 35215.5383602182. The cubic root of 1240134142 is about 1074.3758098403.

Adding to 1240134142 its reverse (2414310421), we get a palindrome (3654444563).

The spelling of 1240134142 in words is "one billion, two hundred forty million, one hundred thirty-four thousand, one hundred forty-two".