117826945 has 8 divisors (see below), whose sum is σ = 142133760. Its totient is φ = 93767280.

The previous prime is 117826921. The next prime is 117826957. The reversal of 117826945 is 549628711.

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

It is not a de Polignac number, because 117826945 - 2⁷ = 117826817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60735 + ... + 62644.

It is an arithmetic number, because the mean of its divisors is an integer number (17766720).

Almost surely, 2^117826945 is an apocalyptic number.

It is an amenable number.

117826945 is a deficient number, since it is larger than the sum of its proper divisors (24306815).

117826945 is a wasteful number, since it uses less digits than its factorization.

117826945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123575.

The product of its digits is 120960, while the sum is 43.

The square root of 117826945 is about 10854.8120665445. The cubic root of 117826945 is about 490.2469184519.

The spelling of 117826945 in words is "one hundred seventeen million, eight hundred twenty-six thousand, nine hundred forty-five".