118746137 has 4 divisors (see below), whose sum is σ = 118979940. Its totient is φ = 118512336.

The previous prime is 118746119. The next prime is 118746149. The reversal of 118746137 is 731647811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731647811 = 5783 ⋅126517.

It can be written as a sum of positive squares in 2 ways, for example, as 112699456 + 6046681 = 10616^2 + 2459^2 .

It is a cyclic number.

It is not a de Polignac number, because 118746137 - 2¹⁸ = 118483993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118746137.

It is not an unprimeable number, because it can be changed into a prime (118746157) 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, 116138 + ... + 117155.

It is an arithmetic number, because the mean of its divisors is an integer number (29744985).

Almost surely, 2^118746137 is an apocalyptic number.

It is an amenable number.

118746137 is a deficient number, since it is larger than the sum of its proper divisors (233803).

118746137 is an equidigital number, since it uses as much as digits as its factorization.

118746137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233802.

The product of its digits is 28224, while the sum is 38.

The square root of 118746137 is about 10897.0701108142. The cubic root of 118746137 is about 491.5184563455.

The spelling of 118746137 in words is "one hundred eighteen million, seven hundred forty-six thousand, one hundred thirty-seven".