117206445 has 32 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 61167680.

The previous prime is 117206407. The next prime is 117206447. The reversal of 117206445 is 544602711.

It is not a de Polignac number, because 117206445 - 2¹⁰ = 117205421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117206447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177526 + ... + 178184.

It is an arithmetic number, because the mean of its divisors is an integer number (5987520).

Almost surely, 2^117206445 is an apocalyptic number.

117206445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117206445 is a deficient number, since it is larger than the sum of its proper divisors (74394195).

117206445 is a wasteful number, since it uses less digits than its factorization.

117206445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 117206445 is about 10826.1925440110. The cubic root of 117206445 is about 489.3848242736.

The spelling of 117206445 in words is "one hundred seventeen million, two hundred six thousand, four hundred forty-five".