142906657 has 8 divisors (see below), whose sum is σ = 151211360. Its totient is φ = 134680320.

The previous prime is 142906637. The next prime is 142906663. The reversal of 142906657 is 756609241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142906657 is a prime.

It is a super-2 number, since 2×142906657² = 40844625229831298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142906627) 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, 15819 + ... + 23152.

It is an arithmetic number, because the mean of its divisors is an integer number (18901420).

Almost surely, 2^142906657 is an apocalyptic number.

It is an amenable number.

142906657 is a deficient number, since it is larger than the sum of its proper divisors (8304703).

142906657 is a wasteful number, since it uses less digits than its factorization.

142906657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39183.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 142906657 is about 11954.3572390991. The cubic root of 142906657 is about 522.8183473936.

The spelling of 142906657 in words is "one hundred forty-two million, nine hundred six thousand, six hundred fifty-seven".