1213375700 has 18 divisors (see below), whose sum is σ = 2633025486. Its totient is φ = 485350240.

The previous prime is 1213375687. The next prime is 1213375733. The reversal of 1213375700 is 75733121.

It can be written as a sum of positive squares in 3 ways, for example, as 310252996 + 903122704 = 17614^2 + 30052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6066779 + ... + 6066978.

Almost surely, 2^1213375700 is an apocalyptic number.

1213375700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213375700 is an abundant number, since it is smaller than the sum of its proper divisors (1419649786).

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

1213375700 is a wasteful number, since it uses less digits than its factorization.

1213375700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12133771 (or 12133764 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 1213375700 is about 34833.5427425922. The cubic root of 1213375700 is about 1066.5922680314.

The spelling of 1213375700 in words is "one billion, two hundred thirteen million, three hundred seventy-five thousand, seven hundred".