118749397 has 8 divisors (see below), whose sum is σ = 127996344. Its totient is φ = 109518528.

The previous prime is 118749377. The next prime is 118749409. The reversal of 118749397 is 793947811.

It can be written as a sum of positive squares in 4 ways, for example, as 5731236 + 113018161 = 2394^2 + 10631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118749397 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 118749397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118749377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14523 + ... + 21175.

It is an arithmetic number, because the mean of its divisors is an integer number (15999543).

Almost surely, 2^118749397 is an apocalyptic number.

It is an amenable number.

118749397 is a deficient number, since it is larger than the sum of its proper divisors (9246947).

118749397 is a wasteful number, since it uses less digits than its factorization.

118749397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039.

The product of its digits is 381024, while the sum is 49.

The square root of 118749397 is about 10897.2196912791. The cubic root of 118749397 is about 491.5229542757.

The spelling of 118749397 in words is "one hundred eighteen million, seven hundred forty-nine thousand, three hundred ninety-seven".