1371597612 has 144 divisors (see below), whose sum is σ = 4275492480. Its totient is φ = 337478400.

The previous prime is 1371597607. The next prime is 1371597629. The reversal of 1371597612 is 2167951731.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117312 + ... + 128472.

It is an arithmetic number, because the mean of its divisors is an integer number (29690920).

Almost surely, 2^1371597612 is an apocalyptic number.

1371597612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1371597612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2137746240).

1371597612 is an abundant number, since it is smaller than the sum of its proper divisors (2903894868).

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

1371597612 is a wasteful number, since it uses less digits than its factorization.

1371597612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11212 (or 11203 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 1371597612 is about 37035.0862291422. The cubic root of 1371597612 is about 1111.0720946107.

The spelling of 1371597612 in words is "one billion, three hundred seventy-one million, five hundred ninety-seven thousand, six hundred twelve".