117840029 has 2 divisors, whose sum is σ = 117840030. Its totient is φ = 117840028.

The previous prime is 117840011. The next prime is 117840091. The reversal of 117840029 is 920048711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116596804 + 1243225 = 10798^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 117840029 - 2¹⁶ = 117774493 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117839977 and 117840004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117840529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58920014 + 58920015.

It is an arithmetic number, because the mean of its divisors is an integer number (58920015).

Almost surely, 2^117840029 is an apocalyptic number.

It is an amenable number.

117840029 is a deficient number, since it is larger than the sum of its proper divisors (1).

117840029 is an equidigital number, since it uses as much as digits as its factorization.

117840029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 117840029 is about 10855.4147318285. The cubic root of 117840029 is about 490.2650641408.

The spelling of 117840029 in words is "one hundred seventeen million, eight hundred forty thousand, twenty-nine".