1361325612 has 18 divisors (see below), whose sum is σ = 3176724684. Its totient is φ = 453732600.

The previous prime is 1361325557. The next prime is 1361325613. The reversal of 1361325612 is 2165231631.

It is a self number, because there is not a number n which added to its sum of digits gives 1361325612.

It is not an unprimeable number, because it can be changed into a prime (1361325613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122487 + ... + 133137.

Almost surely, 2^1361325612 is an apocalyptic number.

1361325612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1361325612 is an abundant number, since it is smaller than the sum of its proper divisors (1815399072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361325612 is an frugal number, since it uses more digits than its factorization.

1361325612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21309 (or 10656 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 1361325612 is about 36896.1463028322. The cubic root of 1361325612 is about 1108.2915068819.

The spelling of 1361325612 in words is "one billion, three hundred sixty-one million, three hundred twenty-five thousand, six hundred twelve".