117541573 has 2 divisors, whose sum is σ = 117541574. Its totient is φ = 117541572.

The previous prime is 117541561. The next prime is 117541579. The reversal of 117541573 is 375145711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101163364 + 16378209 = 10058^2 + 4047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117541573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117541579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58770786 + 58770787.

It is an arithmetic number, because the mean of its divisors is an integer number (58770787).

Almost surely, 2^117541573 is an apocalyptic number.

It is an amenable number.

117541573 is a deficient number, since it is larger than the sum of its proper divisors (1).

117541573 is an equidigital number, since it uses as much as digits as its factorization.

117541573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 34.

The square root of 117541573 is about 10841.6591442454. The cubic root of 117541573 is about 489.8508125582.

The spelling of 117541573 in words is "one hundred seventeen million, five hundred forty-one thousand, five hundred seventy-three".