118422757 has 4 divisors (see below), whose sum is σ = 119470860. Its totient is φ = 117374656.

The previous prime is 118422749. The next prime is 118422761. The reversal of 118422757 is 757224811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 757224811 = 7 ⋅108174973.

It can be written as a sum of positive squares in 2 ways, for example, as 47761921 + 70660836 = 6911^2 + 8406^2 .

It is a cyclic number.

It is not a de Polignac number, because 118422757 - 2³ = 118422749 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 (118422767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523882 + ... + 524107.

It is an arithmetic number, because the mean of its divisors is an integer number (29867715).

Almost surely, 2^118422757 is an apocalyptic number.

It is an amenable number.

118422757 is a deficient number, since it is larger than the sum of its proper divisors (1048103).

118422757 is a wasteful number, since it uses less digits than its factorization.

118422757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048102.

The product of its digits is 31360, while the sum is 37.

The square root of 118422757 is about 10882.2220616931. Note that the first 3 decimals coincide. The cubic root of 118422757 is about 491.0718685027.

The spelling of 118422757 in words is "one hundred eighteen million, four hundred twenty-two thousand, seven hundred fifty-seven".