1090545 has 32 divisors (see below), whose sum is σ = 1900800. Its totient is φ = 532224.

The previous prime is 1090519. The next prime is 1090553. The reversal of 1090545 is 5450901.

It is not a de Polignac number, because 1090545 - 2¹⁶ = 1025009 is a prime.

It is an alternating number because its digits alternate between odd and even.

1090545 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9951 + ... + 10059.

It is an arithmetic number, because the mean of its divisors is an integer number (59400).

2^1090545 is an apocalyptic number.

1090545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1090545 is a deficient number, since it is larger than the sum of its proper divisors (810255).

1090545 is a wasteful number, since it uses less digits than its factorization.

1090545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1090545 is about 1044.2916259360. The cubic root of 1090545 is about 102.9313961737.

The spelling of 1090545 in words is "one million, ninety thousand, five hundred forty-five".