142140887 has 8 divisors (see below), whose sum is σ = 162564000. Its totient is φ = 121747104.

The previous prime is 142140883. The next prime is 142140899. The reversal of 142140887 is 788041241.

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 142140887 - 2² = 142140883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142140883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4289 + ... + 17397.

It is an arithmetic number, because the mean of its divisors is an integer number (20320500).

Almost surely, 2^142140887 is an apocalyptic number.

142140887 is a deficient number, since it is larger than the sum of its proper divisors (20423113).

142140887 is a wasteful number, since it uses less digits than its factorization.

142140887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14665.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 142140887 is about 11922.2853094530. The cubic root of 142140887 is about 521.8828279845.

The spelling of 142140887 in words is "one hundred forty-two million, one hundred forty thousand, eight hundred eighty-seven".