1083155490 has 80 divisors (see below), whose sum is σ = 2925001728. Its totient is φ = 288788976.

The previous prime is 1083155449. The next prime is 1083155551. The reversal of 1083155490 is 945513801.

1083155490 is a `hidden beast` number, since 10 + 8 + 3 + 1 + 554 + 90 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 194079 + ... + 199581.

Almost surely, 2^1083155490 is an apocalyptic number.

1083155490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1083155490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462500864).

1083155490 is an abundant number, since it is smaller than the sum of its proper divisors (1841846238).

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

1083155490 is an frugal number, since it uses more digits than its factorization.

1083155490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537 (or 5513 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1083155490 is about 32911.3276851603. The cubic root of 1083155490 is about 1026.9838208657.

The spelling of 1083155490 in words is "one billion, eighty-three million, one hundred fifty-five thousand, four hundred ninety".