109703945 has 16 divisors (see below), whose sum is σ = 142046352. Its totient is φ = 80855040.

The previous prime is 109703917. The next prime is 109703959. The reversal of 109703945 is 549307901.

109703945 = 1267² + 1268² + ... + 1331².

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5071504 + 104632441 = 2252^2 + 10229^2 .

It is not a de Polignac number, because 109703945 - 2⁸ = 109703689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109703899 and 109703908.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40349 + ... + 42981.

It is an arithmetic number, because the mean of its divisors is an integer number (8877897).

Almost surely, 2^109703945 is an apocalyptic number.

It is an amenable number.

109703945 is a deficient number, since it is larger than the sum of its proper divisors (32342407).

109703945 is a wasteful number, since it uses less digits than its factorization.

109703945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 109703945 is about 10473.9651040091. The cubic root of 109703945 is about 478.7117437907.

The spelling of 109703945 in words is "one hundred nine million, seven hundred three thousand, nine hundred forty-five".