1312105490 has 16 divisors (see below), whose sum is σ = 2362426560. Its totient is φ = 524700720.

The previous prime is 1312105429. The next prime is 1312105499. The reversal of 1312105490 is 945012131.

1312105490 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1312105499) 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, 26531 + ... + 57689.

It is an arithmetic number, because the mean of its divisors is an integer number (147651660).

Almost surely, 2^1312105490 is an apocalyptic number.

1312105490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312105490 is a deficient number, since it is larger than the sum of its proper divisors (1050321070).

1312105490 is a wasteful number, since it uses less digits than its factorization.

1312105490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35377.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1312105490 is about 36222.9967009909. The cubic root of 1312105490 is about 1094.7700746714.

The spelling of 1312105490 in words is "one billion, three hundred twelve million, one hundred five thousand, four hundred ninety".