118142747 has 2 divisors, whose sum is σ = 118142748. Its totient is φ = 118142746.

The previous prime is 118142737. The next prime is 118142749. The reversal of 118142747 is 747241811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118142747 - 2¹⁸ = 117880603 is a prime.

Together with 118142749, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_6741890 and since 118142747 and 6741890 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (118142749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59071373 + 59071374.

It is an arithmetic number, because the mean of its divisors is an integer number (59071374).

Almost surely, 2^118142747 is an apocalyptic number.

118142747 is a deficient number, since it is larger than the sum of its proper divisors (1).

118142747 is an equidigital number, since it uses as much as digits as its factorization.

118142747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544, while the sum is 35.

The square root of 118142747 is about 10869.3489685445. The cubic root of 118142747 is about 490.6845174095.

The spelling of 118142747 in words is "one hundred eighteen million, one hundred forty-two thousand, seven hundred forty-seven".