1381526160 has 320 divisors, whose sum is σ = 5183668224. Its totient is φ = 297676800.

The previous prime is 1381526149. The next prime is 1381526171. The reversal of 1381526160 is 616251831.

It is an interprime number because it is at equal distance from previous prime (1381526149) and next prime (1381526171).

It is a super-2 number, since 2×1381526160² = 3817229061528691200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2134957 + ... + 2135603.

Almost surely, 2^1381526160 is an apocalyptic number.

1381526160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381526160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2591834112).

1381526160 is an abundant number, since it is smaller than the sum of its proper divisors (3802142064).

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

1381526160 is a wasteful number, since it uses less digits than its factorization.

1381526160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1381526160 is about 37168.8869889858. The cubic root of 1381526160 is about 1113.7465480236.

Adding to 1381526160 its reverse (616251831), we get a palindrome (1997777991).

The spelling of 1381526160 in words is "one billion, three hundred eighty-one million, five hundred twenty-six thousand, one hundred sixty".