109617090 has 64 divisors (see below), whose sum is σ = 288116352. Its totient is φ = 26470400.

The previous prime is 109617089. The next prime is 109617097. The reversal of 109617090 is 90716901.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (109617097) 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 31 ways as a sum of consecutive naturals, for example, 116020 + ... + 116960.

It is an arithmetic number, because the mean of its divisors is an integer number (4501818).

Almost surely, 2^109617090 is an apocalyptic number.

109617090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109617090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144058176).

109617090 is an abundant number, since it is smaller than the sum of its proper divisors (178499262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109617090 is a wasteful number, since it uses less digits than its factorization.

109617090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 109617090 is about 10469.8180499949. The cubic root of 109617090 is about 478.5853749344.

The spelling of 109617090 in words is "one hundred nine million, six hundred seventeen thousand, ninety".