1381326877 has 8 divisors (see below), whose sum is σ = 1579381056. Its totient is φ = 1183453152.

The previous prime is 1381326871. The next prime is 1381326889. The reversal of 1381326877 is 7786231831.

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

It is a de Polignac number, because none of the positive numbers 2^k-1381326877 is a prime.

It is a super-2 number, since 2×1381326877² = 3816127882245146258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381326871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28288 + ... + 59689.

It is an arithmetic number, because the mean of its divisors is an integer number (197422632).

Almost surely, 2^1381326877 is an apocalyptic number.

It is an amenable number.

1381326877 is a deficient number, since it is larger than the sum of its proper divisors (198054179).

1381326877 is an equidigital number, since it uses as much as digits as its factorization.

1381326877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90227.

The product of its digits is 338688, while the sum is 46.

The square root of 1381326877 is about 37166.2061152332. The cubic root of 1381326877 is about 1113.6929933793.

The spelling of 1381326877 in words is "one billion, three hundred eighty-one million, three hundred twenty-six thousand, eight hundred seventy-seven".