117440509 has 2 divisors, whose sum is σ = 117440510. Its totient is φ = 117440508.

The previous prime is 117440489. The next prime is 117440551. The reversal of 117440509 is 905044711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107536900 + 9903609 = 10370^2 + 3147^2 .

It is a cyclic number.

It is not a de Polignac number, because 117440509 - 2⁷ = 117440381 is a prime.

It is a Chen prime.

It is equal to p_6704095 and since 117440509 and 6704095 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117441509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58720254 + 58720255.

It is an arithmetic number, because the mean of its divisors is an integer number (58720255).

Almost surely, 2^117440509 is an apocalyptic number.

It is an amenable number.

117440509 is a deficient number, since it is larger than the sum of its proper divisors (1).

117440509 is an equidigital number, since it uses as much as digits as its factorization.

117440509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 117440509 is about 10836.9972317058. The cubic root of 117440509 is about 489.7103786199.

The spelling of 117440509 in words is "one hundred seventeen million, four hundred forty thousand, five hundred nine".