149528818 has 4 divisors (see below), whose sum is σ = 224293230. Its totient is φ = 74764408.

The previous prime is 149528777. The next prime is 149528831. The reversal of 149528818 is 818825941.

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: 818825941 = 8293 ⋅98737.

It can be written as a sum of positive squares in only one way, i.e., 145853929 + 3674889 = 12077^2 + 1917^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37382203 + ... + 37382206.

Almost surely, 2^149528818 is an apocalyptic number.

149528818 is a deficient number, since it is larger than the sum of its proper divisors (74764412).

149528818 is an equidigital number, since it uses as much as digits as its factorization.

149528818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74764411.

The product of its digits is 184320, while the sum is 46.

The square root of 149528818 is about 12228.1976595081. The cubic root of 149528818 is about 530.7723615011.

The spelling of 149528818 in words is "one hundred forty-nine million, five hundred twenty-eight thousand, eight hundred eighteen".