142021052042545 has 32 divisors (see below), whose sum is σ = 185066396024832. Its totient is φ = 104002713787392.

The previous prime is 142021052042413. The next prime is 142021052042549. The reversal of 142021052042545 is 545240250120241.

It is a cyclic number.

It is not a de Polignac number, because 142021052042545 - 2³¹ = 142018904558897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142021052042549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13676409 + ... + 21704521.

It is an arithmetic number, because the mean of its divisors is an integer number (5783324875776).

Almost surely, 2^{142021052042545} is an apocalyptic number.

It is an amenable number.

142021052042545 is a deficient number, since it is larger than the sum of its proper divisors (43045343982287).

142021052042545 is a wasteful number, since it uses less digits than its factorization.

142021052042545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030401.

The product of its (nonzero) digits is 128000, while the sum is 37.

The spelling of 142021052042545 in words is "one hundred forty-two trillion, twenty-one billion, fifty-two million, forty-two thousand, five hundred forty-five".