657142073 has 8 divisors (see below), whose sum is σ = 754329792. Its totient is φ = 560781936.

The previous prime is 657142063. The next prime is 657142093. The reversal of 657142073 is 370241756.

657142073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 657142073 - 2¹⁸ = 656879929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (657142043) 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, 205190 + ... + 208367.

It is an arithmetic number, because the mean of its divisors is an integer number (94291224).

Almost surely, 2^657142073 is an apocalyptic number.

It is an amenable number.

657142073 is a deficient number, since it is larger than the sum of its proper divisors (97187719).

657142073 is a wasteful number, since it uses less digits than its factorization.

657142073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413791.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 657142073 is about 25634.7824839611. The cubic root of 657142073 is about 869.4002441451.

The spelling of 657142073 in words is "six hundred fifty-seven million, one hundred forty-two thousand, seventy-three".