1089491495 has 8 divisors (see below), whose sum is σ = 1384295184. Its totient is φ = 820322944.

The previous prime is 1089491477. The next prime is 1089491509. The reversal of 1089491495 is 5941949801.

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 1089491495 - 2²⁰ = 1088442919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6408689 + ... + 6408858.

It is an arithmetic number, because the mean of its divisors is an integer number (173036898).

Almost surely, 2^1089491495 is an apocalyptic number.

1089491495 is a deficient number, since it is larger than the sum of its proper divisors (294803689).

1089491495 is a wasteful number, since it uses less digits than its factorization.

1089491495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817569.

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 1089491495 is about 33007.4460538831. The cubic root of 1089491495 is about 1028.9824037302.

The spelling of 1089491495 in words is "one billion, eighty-nine million, four hundred ninety-one thousand, four hundred ninety-five".