1381185088 has 112 divisors (see below), whose sum is σ = 3044952000. Its totient is φ = 618928128.

The previous prime is 1381185079. The next prime is 1381185097. The reversal of 1381185088 is 8805811831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1381185079) and next prime (1381185097).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868623 + ... + 1869361.

Almost surely, 2^1381185088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381185088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522476000).

1381185088 is an abundant number, since it is smaller than the sum of its proper divisors (1663766912).

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

1381185088 is a wasteful number, since it uses less digits than its factorization.

1381185088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 43.

The square root of 1381185088 is about 37164.2985673078. The cubic root of 1381185088 is about 1113.6548863433.

The spelling of 1381185088 in words is "one billion, three hundred eighty-one million, one hundred eighty-five thousand, eighty-eight".