109946421 has 12 divisors (see below), whose sum is σ = 171027948. Its totient is φ = 67659264.

The previous prime is 109946413. The next prime is 109946437. The reversal of 109946421 is 124649901.

It is a happy number.

109946421 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 4 + 642 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68807025 + 41139396 = 8295^2 + 6414^2 .

It is not a de Polignac number, because 109946421 - 2³ = 109946413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109946321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469740 + ... + 469973.

It is an arithmetic number, because the mean of its divisors is an integer number (14252329).

Almost surely, 2^109946421 is an apocalyptic number.

It is an amenable number.

109946421 is a deficient number, since it is larger than the sum of its proper divisors (61081527).

109946421 is a wasteful number, since it uses less digits than its factorization.

109946421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939732 (or 939729 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 109946421 is about 10485.5338919866. The cubic root of 109946421 is about 479.0641792890.

The spelling of 109946421 in words is "one hundred nine million, nine hundred forty-six thousand, four hundred twenty-one".