1240131142 has 4 divisors (see below), whose sum is σ = 1860196716. Its totient is φ = 620065570.

The previous prime is 1240131127. The next prime is 1240131149. The reversal of 1240131142 is 2411310421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240131149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310032784 + ... + 310032787.

It is an arithmetic number, because the mean of its divisors is an integer number (465049179).

Almost surely, 2^1240131142 is an apocalyptic number.

1240131142 is a deficient number, since it is larger than the sum of its proper divisors (620065574).

1240131142 is an equidigital number, since it uses as much as digits as its factorization.

1240131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620065573.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1240131142 is about 35215.4957653587. The cubic root of 1240131142 is about 1074.3749435012.

Adding to 1240131142 its reverse (2411310421), we get a palindrome (3651441563).

The spelling of 1240131142 in words is "one billion, two hundred forty million, one hundred thirty-one thousand, one hundred forty-two".