118519749 has 12 divisors (see below), whose sum is σ = 172330912. Its totient is φ = 78489000.

The previous prime is 118519747. The next prime is 118519783. The reversal of 118519749 is 947915811.

It is a happy number.

It is not a de Polignac number, because 118519749 - 2¹ = 118519747 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 (118519747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42247 + ... + 44964.

Almost surely, 2^118519749 is an apocalyptic number.

It is an amenable number.

118519749 is a deficient number, since it is larger than the sum of its proper divisors (53811163).

118519749 is a wasteful number, since it uses less digits than its factorization.

118519749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87368 (or 87365 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 118519749 is about 10886.6775923603. The cubic root of 118519749 is about 491.2058997375.

The spelling of 118519749 in words is "one hundred eighteen million, five hundred nineteen thousand, seven hundred forty-nine".