149818628 has 6 divisors (see below), whose sum is σ = 262182606. Its totient is φ = 74909312.

The previous prime is 149818621. The next prime is 149818639. The reversal of 149818628 is 826818941.

It is a happy number.

149818628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 75203584 + 74615044 = 8672^2 + 8638^2 .

It is not an unprimeable number, because it can be changed into a prime (149818621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18727325 + ... + 18727332.

It is an arithmetic number, because the mean of its divisors is an integer number (43697101).

Almost surely, 2^149818628 is an apocalyptic number.

It is an amenable number.

149818628 is a deficient number, since it is larger than the sum of its proper divisors (112363978).

149818628 is a wasteful number, since it uses less digits than its factorization.

149818628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37454661 (or 37454659 counting only the distinct ones).

The product of its digits is 221184, while the sum is 47.

The square root of 149818628 is about 12240.0419933920. The cubic root of 149818628 is about 531.1150465419.

The spelling of 149818628 in words is "one hundred forty-nine million, eight hundred eighteen thousand, six hundred twenty-eight".