142405252556 has 18 divisors (see below), whose sum is σ = 289896407388. Its totient is φ = 61030822440.

The previous prime is 142405252543. The next prime is 142405252573. The reversal of 142405252556 is 655252504241.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 363278510 + ... + 363278901.

It is an arithmetic number, because the mean of its divisors is an integer number (16105355966).

Almost surely, 2^142405252556 is an apocalyptic number.

It is an amenable number.

142405252556 is an abundant number, since it is smaller than the sum of its proper divisors (147491154832).

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

142405252556 is a wasteful number, since it uses less digits than its factorization.

142405252556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726557429 (or 726557420 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 142405252556 its reverse (655252504241), we get a palindrome (797657756797).

The spelling of 142405252556 in words is "one hundred forty-two billion, four hundred five million, two hundred fifty-two thousand, five hundred fifty-six".