1089501 has 16 divisors (see below), whose sum is σ = 1718400. Its totient is φ = 600768.

The previous prime is 1089497. The next prime is 1089503. The reversal of 1089501 is 1059801.

It is not a de Polignac number, because 1089501 - 2² = 1089497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (107400).

2^1089501 is an apocalyptic number.

It is an amenable number.

1089501 is a deficient number, since it is larger than the sum of its proper divisors (628899).

1089501 is a wasteful number, since it uses less digits than its factorization.

1089501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1089501 is about 1043.7916458757. The cubic root of 1089501 is about 102.8985396089.

The spelling of 1089501 in words is "one million, eighty-nine thousand, five hundred one".