1255154385 has 16 divisors (see below), whose sum is σ = 2017257984. Its totient is φ = 666412032.

The previous prime is 1255154359. The next prime is 1255154437. The reversal of 1255154385 is 5834515521.

It is not a de Polignac number, because 1255154385 - 2¹¹ = 1255152337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184272 + ... + 190961.

It is an arithmetic number, because the mean of its divisors is an integer number (126078624).

Almost surely, 2^1255154385 is an apocalyptic number.

1255154385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255154385 is a deficient number, since it is larger than the sum of its proper divisors (762103599).

1255154385 is a wasteful number, since it uses less digits than its factorization.

1255154385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375464.

The product of its digits is 120000, while the sum is 39.

The square root of 1255154385 is about 35428.1580808260. The cubic root of 1255154385 is about 1078.6959526376.

The spelling of 1255154385 in words is "one billion, two hundred fifty-five million, one hundred fifty-four thousand, three hundred eighty-five".