109134405 has 32 divisors (see below), whose sum is σ = 194469120. Its totient is φ = 58069440.

The previous prime is 109134323. The next prime is 109134413. The reversal of 109134405 is 504431901.

It is not a de Polignac number, because 109134405 - 2¹¹ = 109132357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88624 + ... + 89846.

It is an arithmetic number, because the mean of its divisors is an integer number (6077160).

Almost surely, 2^109134405 is an apocalyptic number.

109134405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109134405 is a deficient number, since it is larger than the sum of its proper divisors (85334715).

109134405 is a wasteful number, since it uses less digits than its factorization.

109134405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 109134405 is about 10446.7413579546. The cubic root of 109134405 is about 477.8818779335.

The spelling of 109134405 in words is "one hundred nine million, one hundred thirty-four thousand, four hundred five".