1240130143 has 16 divisors (see below), whose sum is σ = 1428618240. Its totient is φ = 1054501056.

The previous prime is 1240130063. The next prime is 1240130149. The reversal of 1240130143 is 3410310421.

It is not a de Polignac number, because 1240130143 - 2¹³ = 1240121951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1240130143.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961443 + ... + 962731.

It is an arithmetic number, because the mean of its divisors is an integer number (89288640).

Almost surely, 2^1240130143 is an apocalyptic number.

1240130143 is a deficient number, since it is larger than the sum of its proper divisors (188488097).

1240130143 is a wasteful number, since it uses less digits than its factorization.

1240130143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1240130143 is about 35215.4815812591. The cubic root of 1240130143 is about 1074.3746550100.

Adding to 1240130143 its reverse (3410310421), we get a palindrome (4650440564).

The spelling of 1240130143 in words is "one billion, two hundred forty million, one hundred thirty thousand, one hundred forty-three".