254791357 has 4 divisors (see below), whose sum is σ = 254929696. Its totient is φ = 254653020.

The previous prime is 254791351. The next prime is 254791373. The reversal of 254791357 is 753197452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254791357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254791351) 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, 66369 + ... + 70102.

It is an arithmetic number, because the mean of its divisors is an integer number (63732424).

Almost surely, 2^254791357 is an apocalyptic number.

It is an amenable number.

254791357 is a deficient number, since it is larger than the sum of its proper divisors (138339).

254791357 is a wasteful number, since it uses less digits than its factorization.

254791357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138338.

The product of its digits is 264600, while the sum is 43.

The square root of 254791357 is about 15962.1852200756. The cubic root of 254791357 is about 633.9595725996.

The spelling of 254791357 in words is "two hundred fifty-four million, seven hundred ninety-one thousand, three hundred fifty-seven".