1371115345 has 8 divisors (see below), whose sum is σ = 1650530664. Its totient is φ = 1093430784.

The previous prime is 1371115313. The next prime is 1371115367. The reversal of 1371115345 is 5435111731.

It can be written as a sum of positive squares in 4 ways, for example, as 15992001 + 1355123344 = 3999^2 + 36812^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1371115345 - 2⁵ = 1371115313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430944 + ... + 434113.

It is an arithmetic number, because the mean of its divisors is an integer number (206316333).

Almost surely, 2^1371115345 is an apocalyptic number.

It is an amenable number.

1371115345 is a deficient number, since it is larger than the sum of its proper divisors (279415319).

1371115345 is an equidigital number, since it uses as much as digits as its factorization.

1371115345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865379.

The product of its digits is 6300, while the sum is 31.

The square root of 1371115345 is about 37028.5747092701. The cubic root of 1371115345 is about 1110.9418581101.

The spelling of 1371115345 in words is "one billion, three hundred seventy-one million, one hundred fifteen thousand, three hundred forty-five".