109193949 has 12 divisors (see below), whose sum is σ = 164582496. Its totient is φ = 69630792.

The previous prime is 109193933. The next prime is 109193951. The reversal of 109193949 is 949391901.

It is not a de Polignac number, because 109193949 - 2⁴ = 109193933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109193999) 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 11 ways as a sum of consecutive naturals, for example, 263547 + ... + 263960.

It is an arithmetic number, because the mean of its divisors is an integer number (13715208).

Almost surely, 2^109193949 is an apocalyptic number.

It is an amenable number.

109193949 is a deficient number, since it is larger than the sum of its proper divisors (55388547).

109193949 is a wasteful number, since it uses less digits than its factorization.

109193949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527536 (or 527533 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 109193949 is about 10449.5908532344. The cubic root of 109193949 is about 477.9687733083.

The spelling of 109193949 in words is "one hundred nine million, one hundred ninety-three thousand, nine hundred forty-nine".