117851541 has 8 divisors (see below), whose sum is σ = 157185600. Its totient is φ = 78542592.

The previous prime is 117851533. The next prime is 117851543. The reversal of 117851541 is 145158711.

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

It is not a de Polignac number, because 117851541 - 2³ = 117851533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117851543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14560 + ... + 21158.

It is an arithmetic number, because the mean of its divisors is an integer number (19648200).

Almost surely, 2^117851541 is an apocalyptic number.

It is an amenable number.

117851541 is a deficient number, since it is larger than the sum of its proper divisors (39334059).

117851541 is an equidigital number, since it uses as much as digits as its factorization.

117851541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12555.

The product of its digits is 5600, while the sum is 33.

The square root of 117851541 is about 10855.9449611722. The cubic root of 117851541 is about 490.2810285736.

The spelling of 117851541 in words is "one hundred seventeen million, eight hundred fifty-one thousand, five hundred forty-one".