1371318345 has 48 divisors (see below), whose sum is σ = 2525402880. Its totient is φ = 685988352.

The previous prime is 1371318341. The next prime is 1371318401. The reversal of 1371318345 is 5438131731.

It is not a de Polignac number, because 1371318345 - 2² = 1371318341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1371318341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 231936 + ... + 237774.

It is an arithmetic number, because the mean of its divisors is an integer number (52612560).

Almost surely, 2^1371318345 is an apocalyptic number.

1371318345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1371318345 is a deficient number, since it is larger than the sum of its proper divisors (1154084535).

1371318345 is a wasteful number, since it uses less digits than its factorization.

1371318345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174 (or 6171 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1371318345 is about 37031.3157341189. The cubic root of 1371318345 is about 1110.9966821065.

The spelling of 1371318345 in words is "one billion, three hundred seventy-one million, three hundred eighteen thousand, three hundred forty-five".