108731345 has 8 divisors (see below), whose sum is σ = 134004264. Its totient is φ = 84633984.

The previous prime is 108731339. The next prime is 108731347. The reversal of 108731345 is 543137801.

It can be written as a sum of positive squares in 4 ways, for example, as 42211009 + 66520336 = 6497^2 + 8156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108731345 - 2¹⁴ = 108714961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108731347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293684 + ... + 294053.

It is an arithmetic number, because the mean of its divisors is an integer number (16750533).

Almost surely, 2^108731345 is an apocalyptic number.

It is an amenable number.

108731345 is a deficient number, since it is larger than the sum of its proper divisors (25272919).

108731345 is an equidigital number, since it uses as much as digits as its factorization.

108731345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587779.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 108731345 is about 10427.4323301568. The cubic root of 108731345 is about 477.2928407053.

The spelling of 108731345 in words is "one hundred eight million, seven hundred thirty-one thousand, three hundred forty-five".