1238559255 has 20 divisors (see below), whose sum is σ = 2220232872. Its totient is φ = 660564720.

The previous prime is 1238559247. The next prime is 1238559271. The reversal of 1238559255 is 5529558321.

It is a happy number.

1238559255 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 5 + 592 + 55 = 666.

It is not a de Polignac number, because 1238559255 - 2³ = 1238559247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1238559255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1528681 + ... + 1529490.

Almost surely, 2^1238559255 is an apocalyptic number.

1238559255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1238559255 is a deficient number, since it is larger than the sum of its proper divisors (981673617).

1238559255 is an equidigital number, since it uses as much as digits as its factorization.

1238559255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058188 (or 3058179 counting only the distinct ones).

The product of its digits is 540000, while the sum is 45.

The square root of 1238559255 is about 35193.1705732803. The cubic root of 1238559255 is about 1073.9208221646.

The spelling of 1238559255 in words is "one billion, two hundred thirty-eight million, five hundred fifty-nine thousand, two hundred fifty-five".