1255451830 has 8 divisors (see below), whose sum is σ = 2259813312. Its totient is φ = 502180728.

The previous prime is 1255451807. The next prime is 1255451843. The reversal of 1255451830 is 381545521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62772582 + ... + 62772601.

It is an arithmetic number, because the mean of its divisors is an integer number (282476664).

Almost surely, 2^1255451830 is an apocalyptic number.

1255451830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255451830 is a deficient number, since it is larger than the sum of its proper divisors (1004361482).

1255451830 is a wasteful number, since it uses less digits than its factorization.

1255451830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125545190.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 1255451830 is about 35432.3556936312. The cubic root of 1255451830 is about 1078.7811552708.

The spelling of 1255451830 in words is "one billion, two hundred fifty-five million, four hundred fifty-one thousand, eight hundred thirty".