255161386 has 4 divisors (see below), whose sum is σ = 382742082. Its totient is φ = 127580692.

The previous prime is 255161383. The next prime is 255161399. The reversal of 255161386 is 683161552.

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

It can be written as a sum of positive squares in only one way, i.e., 253287225 + 1874161 = 15915^2 + 1369^2 .

It is not an unprimeable number, because it can be changed into a prime (255161383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63790345 + ... + 63790348.

Almost surely, 2^255161386 is an apocalyptic number.

255161386 is a deficient number, since it is larger than the sum of its proper divisors (127580696).

255161386 is a wasteful number, since it uses less digits than its factorization.

255161386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127580695.

The product of its digits is 43200, while the sum is 37.

The square root of 255161386 is about 15973.7718150724. The cubic root of 255161386 is about 634.2663202597.

The spelling of 255161386 in words is "two hundred fifty-five million, one hundred sixty-one thousand, three hundred eighty-six".