1240130142 has 16 divisors (see below), whose sum is σ = 2755844880. Its totient is φ = 413376696.

The previous prime is 1240130063. The next prime is 1240130149. The reversal of 1240130142 is 2410310421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240130149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11482633 + ... + 11482740.

It is an arithmetic number, because the mean of its divisors is an integer number (172240305).

Almost surely, 2^1240130142 is an apocalyptic number.

1240130142 is an abundant number, since it is smaller than the sum of its proper divisors (1515714738).

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

1240130142 is a wasteful number, since it uses less digits than its factorization.

1240130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22965384 (or 22965378 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1240130142 is about 35215.4815670608. The cubic root of 1240130142 is about 1074.3746547212.

Adding to 1240130142 its reverse (2410310421), we get a palindrome (3650440563).

The spelling of 1240130142 in words is "one billion, two hundred forty million, one hundred thirty thousand, one hundred forty-two".