142031869497 has 16 divisors (see below), whose sum is σ = 240477239680. Its totient is φ = 81161068176.

The previous prime is 142031869451. The next prime is 142031869523. The reversal of 142031869497 is 794968130241.

142031869497 is a `hidden beast` number, since 1 + 42 + 0 + 31 + 86 + 9 + 497 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-142031869497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142031869097) 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, 375745498 + ... + 375745875.

It is an arithmetic number, because the mean of its divisors is an integer number (15029827480).

Almost surely, 2^142031869497 is an apocalyptic number.

It is an amenable number.

142031869497 is a deficient number, since it is larger than the sum of its proper divisors (98445370183).

142031869497 is an equidigital number, since it uses as much as digits as its factorization.

142031869497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751491389 (or 751491383 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 142031869497 in words is "one hundred forty-two billion, thirty-one million, eight hundred sixty-nine thousand, four hundred ninety-seven".