142856973 has 32 divisors (see below), whose sum is σ = 244051200. Its totient is φ = 80898048.

The previous prime is 142856957. The next prime is 142856981. The reversal of 142856973 is 379658241.

142856973 is a `hidden beast` number, since 14 + 2 + 8 + 569 + 73 = 666.

It is not a de Polignac number, because 142856973 - 2⁴ = 142856957 is a prime.

It is a super-2 number, since 2×142856973² = 40816229469445458, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142856993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18013 + ... + 24701.

It is an arithmetic number, because the mean of its divisors is an integer number (7626600).

Almost surely, 2^142856973 is an apocalyptic number.

It is an amenable number.

142856973 is a deficient number, since it is larger than the sum of its proper divisors (101194227).

142856973 is a wasteful number, since it uses less digits than its factorization.

142856973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818 (or 6812 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 142856973 is about 11952.2789877077. The cubic root of 142856973 is about 522.7577513882.

The spelling of 142856973 in words is "one hundred forty-two million, eight hundred fifty-six thousand, nine hundred seventy-three".