118321739 has 2 divisors, whose sum is σ = 118321740. Its totient is φ = 118321738.

The previous prime is 118321657. The next prime is 118321747. The reversal of 118321739 is 937123811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118321739 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 118321699 and 118321708.

It is not a weakly prime, because it can be changed into another prime (118320739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59160869 + 59160870.

It is an arithmetic number, because the mean of its divisors is an integer number (59160870).

Almost surely, 2^118321739 is an apocalyptic number.

118321739 is a deficient number, since it is larger than the sum of its proper divisors (1).

118321739 is an equidigital number, since it uses as much as digits as its factorization.

118321739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 118321739 is about 10877.5796480651. The cubic root of 118321739 is about 490.9321959955.

It can be divided in two parts, 1183 and 21739, that added together give a palindrome (22922).

The spelling of 118321739 in words is "one hundred eighteen million, three hundred twenty-one thousand, seven hundred thirty-nine".