1255378492 has 12 divisors (see below), whose sum is σ = 2198105896. Its totient is φ = 627348240.

The previous prime is 1255378483. The next prime is 1255378499. The reversal of 1255378492 is 2948735521.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255378499) 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, 76878 + ... + 91765.

Almost surely, 2^1255378492 is an apocalyptic number.

It is an amenable number.

1255378492 is a deficient number, since it is larger than the sum of its proper divisors (942727404).

1255378492 is a wasteful number, since it uses less digits than its factorization.

1255378492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170508 (or 170506 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 1255378492 is about 35431.3207769623. The cubic root of 1255378492 is about 1078.7601489709.

The spelling of 1255378492 in words is "one billion, two hundred fifty-five million, three hundred seventy-eight thousand, four hundred ninety-two".