117542741 has 2 divisors, whose sum is σ = 117542742. Its totient is φ = 117542740.

The previous prime is 117542729. The next prime is 117542749. The reversal of 117542741 is 147245711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87347716 + 30195025 = 9346^2 + 5495^2 .

It is a cyclic number.

It is not a de Polignac number, because 117542741 - 2²² = 113348437 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 117542698 and 117542707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117542749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58771370 + 58771371.

It is an arithmetic number, because the mean of its divisors is an integer number (58771371).

Almost surely, 2^117542741 is an apocalyptic number.

It is an amenable number.

117542741 is a deficient number, since it is larger than the sum of its proper divisors (1).

117542741 is an equidigital number, since it uses as much as digits as its factorization.

117542741 is an odious number, because the sum of its binary digits is odd.

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

The square root of 117542741 is about 10841.7130104057. The cubic root of 117542741 is about 489.8524350873.

The spelling of 117542741 in words is "one hundred seventeen million, five hundred forty-two thousand, seven hundred forty-one".