142870691 has 8 divisors (see below), whose sum is σ = 146512800. Its totient is φ = 139236160.

The previous prime is 142870681. The next prime is 142870697. The reversal of 142870691 is 196078241.

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 142870691 - 2⁶ = 142870627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142870697) 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, 69050 + ... + 71088.

It is an arithmetic number, because the mean of its divisors is an integer number (18314100).

Almost surely, 2^142870691 is an apocalyptic number.

142870691 is a deficient number, since it is larger than the sum of its proper divisors (3642109).

142870691 is a wasteful number, since it uses less digits than its factorization.

142870691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3789.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 142870691 is about 11952.8528393852. The cubic root of 142870691 is about 522.7744836512.

The spelling of 142870691 in words is "one hundred forty-two million, eight hundred seventy thousand, six hundred ninety-one".