1081736136 has 48 divisors (see below), whose sum is σ = 3155066460. Its totient is φ = 332841600.

The previous prime is 1081736093. The next prime is 1081736147. The reversal of 1081736136 is 6316371801.

It can be written as a sum of positive squares in 2 ways, for example, as 1020802500 + 60933636 = 31950^2 + 7806^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1081736136.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 576915 + ... + 578786.

Almost surely, 2^1081736136 is an apocalyptic number.

It is an amenable number.

1081736136 is an abundant number, since it is smaller than the sum of its proper divisors (2073330324).

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

1081736136 is a wasteful number, since it uses less digits than its factorization.

1081736136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155726 (or 1155719 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1081736136 is about 32889.7573113576. The cubic root of 1081736136 is about 1026.5350423450.

The spelling of 1081736136 in words is "one billion, eighty-one million, seven hundred thirty-six thousand, one hundred thirty-six".