142031900645 has 8 divisors (see below), whose sum is σ = 180464062104. Its totient is φ = 106941666304.

The previous prime is 142031900581. The next prime is 142031900653. The reversal of 142031900645 is 546009130241.

It can be written as a sum of positive squares in 4 ways, for example, as 15945123076 + 126086777569 = 126274^2 + 355087^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 142031900645 - 2⁶ = 142031900581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835481684 + ... + 835481853.

It is an arithmetic number, because the mean of its divisors is an integer number (22558007763).

Almost surely, 2^142031900645 is an apocalyptic number.

It is an amenable number.

142031900645 is a deficient number, since it is larger than the sum of its proper divisors (38432161459).

142031900645 is a wasteful number, since it uses less digits than its factorization.

142031900645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670963559.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 142031900645 in words is "one hundred forty-two billion, thirty-one million, nine hundred thousand, six hundred forty-five".