1381325132 has 24 divisors (see below), whose sum is σ = 2638237392. Its totient is φ = 627598400.

The previous prime is 1381325087. The next prime is 1381325147. The reversal of 1381325132 is 2315231831.

It is a junction number, because it is equal to n+sod(n) for n = 1381325095 and 1381325104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120398 + ... + 131370.

It is an arithmetic number, because the mean of its divisors is an integer number (109926558).

Almost surely, 2^1381325132 is an apocalyptic number.

It is an amenable number.

1381325132 is a deficient number, since it is larger than the sum of its proper divisors (1256912260).

1381325132 is a wasteful number, since it uses less digits than its factorization.

1381325132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13849 (or 13847 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 1381325132 is about 37166.1826395986. The cubic root of 1381325132 is about 1113.6925244111.

Adding to 1381325132 its reverse (2315231831), we get a palindrome (3696556963).

The spelling of 1381325132 in words is "one billion, three hundred eighty-one million, three hundred twenty-five thousand, one hundred thirty-two".