1081604235 has 16 divisors (see below), whose sum is σ = 1731778560. Its totient is φ = 576451680.

The previous prime is 1081604221. The next prime is 1081604297. The reversal of 1081604235 is 5324061801.

It is not a de Polignac number, because 1081604235 - 2⁸ = 1081603979 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2445 + ... + 46574.

It is an arithmetic number, because the mean of its divisors is an integer number (108236160).

Almost surely, 2^1081604235 is an apocalyptic number.

1081604235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1081604235 is a deficient number, since it is larger than the sum of its proper divisors (650174325).

1081604235 is a wasteful number, since it uses less digits than its factorization.

1081604235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50498.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1081604235 is about 32887.7520514857. The cubic root of 1081604235 is about 1026.4933172891.

The spelling of 1081604235 in words is "one billion, eighty-one million, six hundred four thousand, two hundred thirty-five".