117038145 has 32 divisors (see below), whose sum is σ = 223322112. Its totient is φ = 51175872.

The previous prime is 117038111. The next prime is 117038147. The reversal of 117038145 is 541830711.

It is not a de Polignac number, because 117038145 - 2²³ = 108649537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117038147) 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, 21817 + ... + 26646.

It is an arithmetic number, because the mean of its divisors is an integer number (6978816).

Almost surely, 2^117038145 is an apocalyptic number.

117038145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117038145 is a deficient number, since it is larger than the sum of its proper divisors (106283967).

117038145 is a wasteful number, since it uses less digits than its factorization.

117038145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48501.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 117038145 is about 10818.4169359477. The cubic root of 117038145 is about 489.1504716318.

Adding to 117038145 its reverse (541830711), we get a palindrome (658868856).

The spelling of 117038145 in words is "one hundred seventeen million, thirty-eight thousand, one hundred forty-five".