118117429 has 2 divisors, whose sum is σ = 118117430. Its totient is φ = 118117428.

The previous prime is 118117423. The next prime is 118117451. The reversal of 118117429 is 924711811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117137329 + 980100 = 10823^2 + 990^2 .

It is an emirp because it is prime and its reverse (924711811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118117429 - 2³ = 118117421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118117394 and 118117403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118117421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59058714 + 59058715.

It is an arithmetic number, because the mean of its divisors is an integer number (59058715).

Almost surely, 2^118117429 is an apocalyptic number.

It is an amenable number.

118117429 is a deficient number, since it is larger than the sum of its proper divisors (1).

118117429 is an equidigital number, since it uses as much as digits as its factorization.

118117429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 34.

The square root of 118117429 is about 10868.1842549710. The cubic root of 118117429 is about 490.6494636618.

The spelling of 118117429 in words is "one hundred eighteen million, one hundred seventeen thousand, four hundred twenty-nine".