109223961 has 16 divisors (see below), whose sum is σ = 181567488. Its totient is φ = 56739600.

The previous prime is 109223957. The next prime is 109223993. The reversal of 109223961 is 169322901.

It is not a de Polignac number, because 109223961 - 2² = 109223957 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (109223921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236185 + ... + 236646.

It is an arithmetic number, because the mean of its divisors is an integer number (11347968).

Almost surely, 2^109223961 is an apocalyptic number.

109223961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

109223961 is a deficient number, since it is larger than the sum of its proper divisors (72343527).

109223961 is a wasteful number, since it uses less digits than its factorization.

109223961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472852.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 109223961 is about 10451.0267916602. The cubic root of 109223961 is about 478.0125592657.

The spelling of 109223961 in words is "one hundred nine million, two hundred twenty-three thousand, nine hundred sixty-one".