1380267815 has 8 divisors (see below), whose sum is σ = 1657294128. Its totient is φ = 1103565760.

The previous prime is 1380267797. The next prime is 1380267821. The reversal of 1380267815 is 5187620831.

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

It is not a de Polignac number, because 1380267815 - 2⁶ = 1380267751 is a prime.

It is a super-2 number, since 2×1380267815² = 3810278482249748450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 71597 + ... + 88806.

It is an arithmetic number, because the mean of its divisors is an integer number (207161766).

Almost surely, 2^1380267815 is an apocalyptic number.

1380267815 is a deficient number, since it is larger than the sum of its proper divisors (277026313).

1380267815 is a wasteful number, since it uses less digits than its factorization.

1380267815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162129.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1380267815 is about 37151.9557358694. The cubic root of 1380267815 is about 1113.4082981562.

The spelling of 1380267815 in words is "one billion, three hundred eighty million, two hundred sixty-seven thousand, eight hundred fifteen".