1381875132 has 48 divisors (see below), whose sum is σ = 3552361344. Its totient is φ = 414600000.

The previous prime is 1381875119. The next prime is 1381875139. The reversal of 1381875132 is 2315781831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381875139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38494 + ... + 65157.

It is an arithmetic number, because the mean of its divisors is an integer number (74007528).

Almost surely, 2^1381875132 is an apocalyptic number.

1381875132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1381875132 is an abundant number, since it is smaller than the sum of its proper divisors (2170486212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1381875132 is a wasteful number, since it uses less digits than its factorization.

1381875132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103770 (or 103768 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 1381875132 is about 37173.5811027133. The cubic root of 1381875132 is about 1113.8403171828.

The spelling of 1381875132 in words is "one billion, three hundred eighty-one million, eight hundred seventy-five thousand, one hundred thirty-two".