142786957 has 8 divisors (see below), whose sum is σ = 150930560. Its totient is φ = 134706240.

The previous prime is 142786951. The next prime is 142786991. The reversal of 142786957 is 759687241.

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 142786957 - 2¹¹ = 142784909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142786957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142786951) 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, 11013 + ... + 20170.

It is an arithmetic number, because the mean of its divisors is an integer number (18866320).

Almost surely, 2^142786957 is an apocalyptic number.

It is an amenable number.

142786957 is a deficient number, since it is larger than the sum of its proper divisors (8143603).

142786957 is a wasteful number, since it uses less digits than its factorization.

142786957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31443.

The product of its digits is 846720, while the sum is 49.

The square root of 142786957 is about 11949.3496475750. The cubic root of 142786957 is about 522.6723340481.

The spelling of 142786957 in words is "one hundred forty-two million, seven hundred eighty-six thousand, nine hundred fifty-seven".