56973143 has 4 divisors (see below), whose sum is σ = 57183648. Its totient is φ = 56762640.

The previous prime is 56973127. The next prime is 56973167. The reversal of 56973143 is 34137965.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56973143 - 2⁴ = 56973127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56973097 and 56973106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56973193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104846 + ... + 105387.

It is an arithmetic number, because the mean of its divisors is an integer number (14295912).

Almost surely, 2^56973143 is an apocalyptic number.

56973143 is a deficient number, since it is larger than the sum of its proper divisors (210505).

56973143 is a wasteful number, since it uses less digits than its factorization.

56973143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210504.

The product of its digits is 68040, while the sum is 38.

The square root of 56973143 is about 7548.0555774318. The cubic root of 56973143 is about 384.7896596583.

The spelling of 56973143 in words is "fifty-six million, nine hundred seventy-three thousand, one hundred forty-three".