1381125684 has 24 divisors (see below), whose sum is σ = 3245814880. Its totient is φ = 457062624.

The previous prime is 1381125659. The next prime is 1381125709. The reversal of 1381125684 is 4865211831.

It is an interprime number because it is at equal distance from previous prime (1381125659) and next prime (1381125709).

It is a congruent number.

It is an unprimeable number.

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, 412339 + ... + 415674.

Almost surely, 2^1381125684 is an apocalyptic number.

It is an amenable number.

1381125684 is an abundant number, since it is smaller than the sum of its proper divisors (1864689196).

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

1381125684 is a wasteful number, since it uses less digits than its factorization.

1381125684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828159 (or 828157 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 1381125684 is about 37163.4993508415. The cubic root of 1381125684 is about 1113.6389202226.

The spelling of 1381125684 in words is "one billion, three hundred eighty-one million, one hundred twenty-five thousand, six hundred eighty-four".