1371397836 has 12 divisors (see below), whose sum is σ = 3199928312. Its totient is φ = 457132608.

The previous prime is 1371397831. The next prime is 1371397847. The reversal of 1371397836 is 6387931731.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1371397831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57141565 + ... + 57141588.

Almost surely, 2^1371397836 is an apocalyptic number.

It is an amenable number.

1371397836 is an abundant number, since it is smaller than the sum of its proper divisors (1828530476).

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

1371397836 is a wasteful number, since it uses less digits than its factorization.

1371397836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114283160 (or 114283158 counting only the distinct ones).

The product of its digits is 571536, while the sum is 48.

The square root of 1371397836 is about 37032.3890128628. The cubic root of 1371397836 is about 1111.0181486831.

The spelling of 1371397836 in words is "one billion, three hundred seventy-one million, three hundred ninety-seven thousand, eight hundred thirty-six".