109137447 has 24 divisors (see below), whose sum is σ = 160580784. Its totient is φ = 71414784.

The previous prime is 109137443. The next prime is 109137481. The reversal of 109137447 is 744731901.

It is not a de Polignac number, because 109137447 - 2² = 109137443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109137443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143793 + ... + 144549.

It is an arithmetic number, because the mean of its divisors is an integer number (6690866).

Almost surely, 2^109137447 is an apocalyptic number.

109137447 is a deficient number, since it is larger than the sum of its proper divisors (51443337).

109137447 is a wasteful number, since it uses less digits than its factorization.

109137447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 109137447 is about 10446.8869525807. The cubic root of 109137447 is about 477.8863180340.

The spelling of 109137447 in words is "one hundred nine million, one hundred thirty-seven thousand, four hundred forty-seven".