1081413558 has 16 divisors (see below), whose sum is σ = 2403141360. Its totient is φ = 360471168.

The previous prime is 1081413539. The next prime is 1081413559. The reversal of 1081413558 is 8553141801.

1081413558 is a `hidden beast` number, since 10 + 81 + 4 + 13 + 558 = 666.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081413559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10013035 + ... + 10013142.

It is an arithmetic number, because the mean of its divisors is an integer number (150196335).

Almost surely, 2^1081413558 is an apocalyptic number.

1081413558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1081413558 is an abundant number, since it is smaller than the sum of its proper divisors (1321727802).

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

1081413558 is a wasteful number, since it uses less digits than its factorization.

1081413558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20026188 (or 20026182 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 1081413558 is about 32884.8530177649. The cubic root of 1081413558 is about 1026.4329932621.

The spelling of 1081413558 in words is "one billion, eighty-one million, four hundred thirteen thousand, five hundred fifty-eight".