109961000 has 32 divisors (see below), whose sum is σ = 257311080. Its totient is φ = 43984000.

The previous prime is 109960997. The next prime is 109961021. The reversal of 109961000 is 169901.

It can be written as a sum of positive squares in 4 ways, for example, as 67996516 + 41964484 = 8246^2 + 6478^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53981 + ... + 55980.

Almost surely, 2^109961000 is an apocalyptic number.

109961000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109961000 is an abundant number, since it is smaller than the sum of its proper divisors (147350080).

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

109961000 is a wasteful number, since it uses less digits than its factorization.

109961000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109982 (or 109968 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 109961000 is about 10486.2290648259. The cubic root of 109961000 is about 479.0853531418.

The spelling of 109961000 in words is "one hundred nine million, nine hundred sixty-one thousand".