142440213532 has 12 divisors (see below), whose sum is σ = 250240299120. Its totient is φ = 70942985216.

The previous prime is 142440213511. The next prime is 142440213541. The reversal of 142440213532 is 235312044241.

It is a junction number, because it is equal to n+sod(n) for n = 142440213494 and 142440213503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69279232 + ... + 69281287.

It is an arithmetic number, because the mean of its divisors is an integer number (20853358260).

Almost surely, 2^142440213532 is an apocalyptic number.

It is an amenable number.

142440213532 is a deficient number, since it is larger than the sum of its proper divisors (107800085588).

142440213532 is a wasteful number, since it uses less digits than its factorization.

142440213532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138560780 (or 138560778 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 142440213532 its reverse (235312044241), we get a palindrome (377752257773).

The spelling of 142440213532 in words is "one hundred forty-two billion, four hundred forty million, two hundred thirteen thousand, five hundred thirty-two".