1381157882 has 8 divisors (see below), whose sum is σ = 2231101236. Its totient is φ = 637457472.

The previous prime is 1381157879. The next prime is 1381157887. The reversal of 1381157882 is 2887511831.

It can be written as a sum of positive squares in 2 ways, for example, as 1358585881 + 22572001 = 36859^2 + 4751^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1381157887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26560703 + ... + 26560754.

Almost surely, 2^1381157882 is an apocalyptic number.

1381157882 is a deficient number, since it is larger than the sum of its proper divisors (849943354).

1381157882 is a wasteful number, since it uses less digits than its factorization.

1381157882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53121472.

The product of its digits is 107520, while the sum is 44.

The square root of 1381157882 is about 37163.9325421840. The cubic root of 1381157882 is about 1113.6475741942.

The spelling of 1381157882 in words is "one billion, three hundred eighty-one million, one hundred fifty-seven thousand, eight hundred eighty-two".