1381956327 has 12 divisors (see below), whose sum is σ = 2050109880. Its totient is φ = 896403888.

The previous prime is 1381956287. The next prime is 1381956337. The reversal of 1381956327 is 7236591831.

1381956327 is a `hidden beast` number, since 1 + 3 + 8 + 1 + 9 + 5 + 632 + 7 = 666.

It is not a de Polignac number, because 1381956327 - 2⁶ = 1381956263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381956337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2074677 + ... + 2075342.

It is an arithmetic number, because the mean of its divisors is an integer number (170842490).

Almost surely, 2^1381956327 is an apocalyptic number.

1381956327 is a deficient number, since it is larger than the sum of its proper divisors (668153553).

1381956327 is a wasteful number, since it uses less digits than its factorization.

1381956327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150062 (or 4150059 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1381956327 is about 37174.6731929146. The cubic root of 1381956327 is about 1113.8621321045.

The spelling of 1381956327 in words is "one billion, three hundred eighty-one million, nine hundred fifty-six thousand, three hundred twenty-seven".