117724541 has 16 divisors (see below), whose sum is σ = 136779840. Its totient is φ = 100135680.

The previous prime is 117724493. The next prime is 117724553. The reversal of 117724541 is 145427711.

It is a cyclic number.

It is not a de Polignac number, because 117724541 - 2¹⁰ = 117723517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117724498 and 117724507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117724241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31715 + ... + 35231.

It is an arithmetic number, because the mean of its divisors is an integer number (8548740).

Almost surely, 2^117724541 is an apocalyptic number.

117724541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

117724541 is a deficient number, since it is larger than the sum of its proper divisors (19055299).

117724541 is a wasteful number, since it uses less digits than its factorization.

117724541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724.

The product of its digits is 7840, while the sum is 32.

The square root of 117724541 is about 10850.0940548919. The cubic root of 117724541 is about 490.1048519197.

The spelling of 117724541 in words is "one hundred seventeen million, seven hundred twenty-four thousand, five hundred forty-one".