1381532822 has 4 divisors (see below), whose sum is σ = 2072299236. Its totient is φ = 690766410.

The previous prime is 1381532813. The next prime is 1381532861. The reversal of 1381532822 is 2282351831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2282351831 = 2309 ⋅988459.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345383204 + ... + 345383207.

It is an arithmetic number, because the mean of its divisors is an integer number (518074809).

Almost surely, 2^1381532822 is an apocalyptic number.

1381532822 is a deficient number, since it is larger than the sum of its proper divisors (690766414).

1381532822 is an equidigital number, since it uses as much as digits as its factorization.

1381532822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690766413.

The product of its digits is 23040, while the sum is 35.

The square root of 1381532822 is about 37168.9766068424. The cubic root of 1381532822 is about 1113.7483382581.

The spelling of 1381532822 in words is "one billion, three hundred eighty-one million, five hundred thirty-two thousand, eight hundred twenty-two".