255142893 has 8 divisors (see below), whose sum is σ = 340344288. Its totient is φ = 170018384.

The previous prime is 255142879. The next prime is 255142897. The reversal of 255142893 is 398241552.

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 255142893 - 2⁶ = 255142829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255142897) 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, 10971 + ... + 25112.

It is an arithmetic number, because the mean of its divisors is an integer number (42543036).

Almost surely, 2^255142893 is an apocalyptic number.

It is an amenable number.

255142893 is a deficient number, since it is larger than the sum of its proper divisors (85201395).

255142893 is a wasteful number, since it uses less digits than its factorization.

255142893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38443.

The product of its digits is 86400, while the sum is 39.

The square root of 255142893 is about 15973.1929494388. The cubic root of 255142893 is about 634.2509969244.

The spelling of 255142893 in words is "two hundred fifty-five million, one hundred forty-two thousand, eight hundred ninety-three".