142538829453507 has 16 divisors (see below), whose sum is σ = 191754007125408. Its totient is φ = 94178352695040.

The previous prime is 142538829453497. The next prime is 142538829453557. The reversal of 142538829453507 is 705354928835241.

It is a happy number.

It is not a de Polignac number, because 142538829453507 - 2²⁷ = 142538695235779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142538829453557) 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, 447797298 + ... + 448115495.

It is an arithmetic number, because the mean of its divisors is an integer number (11984625445338).

Almost surely, 2^{142538829453507} is an apocalyptic number.

142538829453507 is a deficient number, since it is larger than the sum of its proper divisors (49215177671901).

142538829453507 is a wasteful number, since it uses less digits than its factorization.

142538829453507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895913270.

The product of its (nonzero) digits is 290304000, while the sum is 66.

The spelling of 142538829453507 in words is "one hundred forty-two trillion, five hundred thirty-eight billion, eight hundred twenty-nine million, four hundred fifty-three thousand, five hundred seven".