1090805959 has 8 divisors (see below), whose sum is σ = 1137144960. Its totient is φ = 1045164000.

The previous prime is 1090805929. The next prime is 1090805993. The reversal of 1090805959 is 9595080901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1090805959 - 2⁵ = 1090805927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090805909) 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, 171064 + ... + 177325.

It is an arithmetic number, because the mean of its divisors is an integer number (142143120).

Almost surely, 2^1090805959 is an apocalyptic number.

1090805959 is a deficient number, since it is larger than the sum of its proper divisors (46339001).

1090805959 is a wasteful number, since it uses less digits than its factorization.

1090805959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348521.

The product of its (nonzero) digits is 145800, while the sum is 46.

The square root of 1090805959 is about 33027.3516800848. The cubic root of 1090805959 is about 1029.3960574837.

The spelling of 1090805959 in words is "one billion, ninety million, eight hundred five thousand, nine hundred fifty-nine".