109361961 has 16 divisors (see below), whose sum is σ = 163056000. Its totient is φ = 72440784.

The previous prime is 109361953. The next prime is 109362007. The reversal of 109361961 is 169163901.

It is not a de Polignac number, because 109361961 - 2³ = 109361953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109361921) 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, 8661 + ... + 17138.

It is an arithmetic number, because the mean of its divisors is an integer number (10191000).

Almost surely, 2^109361961 is an apocalyptic number.

It is an amenable number.

109361961 is a deficient number, since it is larger than the sum of its proper divisors (53694039).

109361961 is a wasteful number, since it uses less digits than its factorization.

109361961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25965 (or 25959 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 109361961 is about 10457.6269296624. The cubic root of 109361961 is about 478.2137909686.

The spelling of 109361961 in words is "one hundred nine million, three hundred sixty-one thousand, nine hundred sixty-one".