257073123 has 8 divisors (see below), whose sum is σ = 342917200. Its totient is φ = 171305568.

The previous prime is 257073107. The next prime is 257073137. The reversal of 257073123 is 321370752.

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

It is not a de Polignac number, because 257073123 - 2⁴ = 257073107 is a prime.

It is the 16034-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257073623) by changing a digit.

It is a nontrivial repunit in base 16033.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10768 + ... + 25101.

It is an arithmetic number, because the mean of its divisors is an integer number (42864650).

Almost surely, 2^257073123 is an apocalyptic number.

257073123 is a deficient number, since it is larger than the sum of its proper divisors (85844077).

257073123 is a wasteful number, since it uses less digits than its factorization.

257073123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38261.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 257073123 is about 16033.5000233885. The cubic root of 257073123 is about 635.8464113324.

The spelling of 257073123 in words is "two hundred fifty-seven million, seventy-three thousand, one hundred twenty-three".