117826549 has 2 divisors, whose sum is σ = 117826550. Its totient is φ = 117826548.

The previous prime is 117826531. The next prime is 117826561. The reversal of 117826549 is 945628711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116251524 + 1575025 = 10782^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 117826549 - 2¹³ = 117818357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117826519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58913274 + 58913275.

It is an arithmetic number, because the mean of its divisors is an integer number (58913275).

Almost surely, 2^117826549 is an apocalyptic number.

It is an amenable number.

117826549 is a deficient number, since it is larger than the sum of its proper divisors (1).

117826549 is an equidigital number, since it uses as much as digits as its factorization.

117826549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 117826549 is about 10854.7938257712. The cubic root of 117826549 is about 490.2463692340.

The spelling of 117826549 in words is "one hundred seventeen million, eight hundred twenty-six thousand, five hundred forty-nine".