117829541 has 4 divisors (see below), whose sum is σ = 119489184. Its totient is φ = 116169900.

The previous prime is 117829471. The next prime is 117829559. The reversal of 117829541 is 145928711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117829541 - 2¹⁸ = 117567397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117829495 and 117829504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117829561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829715 + ... + 829856.

It is an arithmetic number, because the mean of its divisors is an integer number (29872296).

Almost surely, 2^117829541 is an apocalyptic number.

It is an amenable number.

117829541 is a deficient number, since it is larger than the sum of its proper divisors (1659643).

117829541 is an equidigital number, since it uses as much as digits as its factorization.

117829541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659642.

The product of its digits is 20160, while the sum is 38.

The square root of 117829541 is about 10854.9316441883. The cubic root of 117829541 is about 490.2505188498.

The spelling of 117829541 in words is "one hundred seventeen million, eight hundred twenty-nine thousand, five hundred forty-one".