117243429 has 4 divisors (see below), whose sum is σ = 156324576. Its totient is φ = 78162284.

The previous prime is 117243419. The next prime is 117243439. The reversal of 117243429 is 924342711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 924342711 = 3 ⋅308114237.

It is an interprime number because it is at equal distance from previous prime (117243419) and next prime (117243439).

It is a cyclic number.

It is not a de Polignac number, because 117243429 - 2⁸ = 117243173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117243429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117243419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19540569 + ... + 19540574.

It is an arithmetic number, because the mean of its divisors is an integer number (39081144).

Almost surely, 2^117243429 is an apocalyptic number.

It is an amenable number.

117243429 is a deficient number, since it is larger than the sum of its proper divisors (39081147).

117243429 is an equidigital number, since it uses as much as digits as its factorization.

117243429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39081146.

The product of its digits is 12096, while the sum is 33.

The square root of 117243429 is about 10827.9004890145. The cubic root of 117243429 is about 489.4362933003.

The spelling of 117243429 in words is "one hundred seventeen million, two hundred forty-three thousand, four hundred twenty-nine".