109581455 has 16 divisors (see below), whose sum is σ = 139353600. Its totient is φ = 82490400.

The previous prime is 109581449. The next prime is 109581503. The reversal of 109581455 is 554185901.

It is not a de Polignac number, because 109581455 - 2²² = 105387151 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 10526 + ... + 18164.

It is an arithmetic number, because the mean of its divisors is an integer number (8709600).

Almost surely, 2^109581455 is an apocalyptic number.

109581455 is a deficient number, since it is larger than the sum of its proper divisors (29772145).

109581455 is a wasteful number, since it uses less digits than its factorization.

109581455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7814.

The product of its (nonzero) digits is 36000, while the sum is 38.

The square root of 109581455 is about 10468.1161151374. The cubic root of 109581455 is about 478.5335088180.

The spelling of 109581455 in words is "one hundred nine million, five hundred eighty-one thousand, four hundred fifty-five".