149600018 has 4 divisors (see below), whose sum is σ = 224400030. Its totient is φ = 74800008.

The previous prime is 149599979. The next prime is 149600071. The reversal of 149600018 is 810006941.

149600018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 149499529 + 100489 = 12227^2 + 317^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37400003 + ... + 37400006.

Almost surely, 2^149600018 is an apocalyptic number.

149600018 is a deficient number, since it is larger than the sum of its proper divisors (74800012).

149600018 is an equidigital number, since it uses as much as digits as its factorization.

149600018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74800011.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 149600018 is about 12231.1086169652. The cubic root of 149600018 is about 530.8565927461.

Adding to 149600018 its reverse (810006941), we get a palindrome (959606959).

The spelling of 149600018 in words is "one hundred forty-nine million, six hundred thousand, eighteen".