1081516385 has 8 divisors (see below), whose sum is σ = 1366126080. Its totient is φ = 819675504.

The previous prime is 1081516367. The next prime is 1081516417. The reversal of 1081516385 is 5836151801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1081516385 is a prime.

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, 5692097 + ... + 5692286.

It is an arithmetic number, because the mean of its divisors is an integer number (170765760).

Almost surely, 2^1081516385 is an apocalyptic number.

It is an amenable number.

1081516385 is a deficient number, since it is larger than the sum of its proper divisors (284609695).

1081516385 is a wasteful number, since it uses less digits than its factorization.

1081516385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11384407.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 1081516385 is about 32886.4164207656. The cubic root of 1081516385 is about 1026.4655252753.

The spelling of 1081516385 in words is "one billion, eighty-one million, five hundred sixteen thousand, three hundred eighty-five".