1240003142 has 8 divisors (see below), whose sum is σ = 2125719696. Its totient is φ = 531429912.

The previous prime is 1240003129. The next prime is 1240003147. The reversal of 1240003142 is 2413000421.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1240003142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240003147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44285813 + ... + 44285840.

It is an arithmetic number, because the mean of its divisors is an integer number (265714962).

Almost surely, 2^1240003142 is an apocalyptic number.

1240003142 is a deficient number, since it is larger than the sum of its proper divisors (885716554).

1240003142 is an equidigital number, since it uses as much as digits as its factorization.

1240003142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88571662.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1240003142 is about 35213.6783366918. The cubic root of 1240003142 is about 1074.3379783987.

Adding to 1240003142 its reverse (2413000421), we get a palindrome (3653003563).

The spelling of 1240003142 in words is "one billion, two hundred forty million, three thousand, one hundred forty-two".