1081805354 has 16 divisors (see below), whose sum is σ = 1884926976. Its totient is φ = 456030000.

The previous prime is 1081805339. The next prime is 1081805359. The reversal of 1081805354 is 4535081801.

It is not an unprimeable number, because it can be changed into a prime (1081805359) 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, 632522 + ... + 634229.

It is an arithmetic number, because the mean of its divisors is an integer number (117807936).

Almost surely, 2^1081805354 is an apocalyptic number.

1081805354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1081805354 is a deficient number, since it is larger than the sum of its proper divisors (803121622).

1081805354 is a wasteful number, since it uses less digits than its factorization.

1081805354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266821.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 1081805354 is about 32890.8095674156. The cubic root of 1081805354 is about 1026.5569371444.

The spelling of 1081805354 in words is "one billion, eighty-one million, eight hundred five thousand, three hundred fifty-four".