118142407 has 4 divisors (see below), whose sum is σ = 118178640. Its totient is φ = 118106176.

The previous prime is 118142389. The next prime is 118142419. The reversal of 118142407 is 704241811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118142407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118142447) 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, 12682 + ... + 19927.

It is an arithmetic number, because the mean of its divisors is an integer number (29544660).

Almost surely, 2^118142407 is an apocalyptic number.

118142407 is a deficient number, since it is larger than the sum of its proper divisors (36233).

118142407 is an equidigital number, since it uses as much as digits as its factorization.

118142407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36232.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 118142407 is about 10869.3333282221. Note that the first 4 decimals coincide. The cubic root of 118142407 is about 490.6840466996.

It can be divided in two parts, 11 and 8142407, that added together give a palindrome (8142418).

The spelling of 118142407 in words is "one hundred eighteen million, one hundred forty-two thousand, four hundred seven".