142917549171 has 16 divisors (see below), whose sum is σ = 191157252000. Its totient is φ = 94978211328.

The previous prime is 142917549157. The next prime is 142917549199. The reversal of 142917549171 is 171945719241.

It is not a de Polignac number, because 142917549171 - 2²⁹ = 142380678259 is a prime.

It is a super-2 number, since 2×142917549171² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142917549371) 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, 7865605 + ... + 7883753.

It is an arithmetic number, because the mean of its divisors is an integer number (11947328250).

Almost surely, 2^142917549171 is an apocalyptic number.

142917549171 is a deficient number, since it is larger than the sum of its proper divisors (48239702829).

142917549171 is a wasteful number, since it uses less digits than its factorization.

142917549171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26278.

The product of its digits is 635040, while the sum is 51.

The spelling of 142917549171 in words is "one hundred forty-two billion, nine hundred seventeen million, five hundred forty-nine thousand, one hundred seventy-one".