1380156365 has 24 divisors (see below), whose sum is σ = 1910885760. Its totient is φ = 937427904.

The previous prime is 1380156359. The next prime is 1380156403. The reversal of 1380156365 is 5636510831.

It is not a de Polignac number, because 1380156365 - 2¹² = 1380152269 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414176 + ... + 417494.

It is an arithmetic number, because the mean of its divisors is an integer number (79620240).

Almost surely, 2^1380156365 is an apocalyptic number.

It is an amenable number.

1380156365 is a deficient number, since it is larger than the sum of its proper divisors (530729395).

1380156365 is an equidigital number, since it uses as much as digits as its factorization.

1380156365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1380156365 is about 37150.4557845526. The cubic root of 1380156365 is about 1113.3783298912.

The spelling of 1380156365 in words is "one billion, three hundred eighty million, one hundred fifty-six thousand, three hundred sixty-five".