1255912994 has 16 divisors (see below), whose sum is σ = 2153739456. Its totient is φ = 538062000.

The previous prime is 1255912993. The next prime is 1255913003. The reversal of 1255912994 is 4992195521.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1255912993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31169 + ... + 59019.

It is an arithmetic number, because the mean of its divisors is an integer number (134608716).

Almost surely, 2^1255912994 is an apocalyptic number.

1255912994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1255912994 is a deficient number, since it is larger than the sum of its proper divisors (897826462).

1255912994 is a wasteful number, since it uses less digits than its factorization.

1255912994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31081.

The product of its digits is 291600, while the sum is 47.

The square root of 1255912994 is about 35438.8627639206. The cubic root of 1255912994 is about 1078.9132283402.

The spelling of 1255912994 in words is "one billion, two hundred fifty-five million, nine hundred twelve thousand, nine hundred ninety-four".