149446225 has 6 divisors (see below), whose sum is σ = 185313350. Its totient is φ = 119556960.

The previous prime is 149446211. The next prime is 149446237. The reversal of 149446225 is 522644941.

It can be written as a sum of positive squares in 3 ways, for example, as 4460544 + 144985681 = 2112^2 + 12041^2 .

It is not a de Polignac number, because 149446225 - 2⁷ = 149446097 is a prime.

It is a congruent number.

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 in 5 ways as a sum of consecutive naturals, for example, 2988900 + ... + 2988949.

Almost surely, 2^149446225 is an apocalyptic number.

It is an amenable number.

149446225 is a deficient number, since it is larger than the sum of its proper divisors (35867125).

149446225 is an equidigital number, since it uses as much as digits as its factorization.

149446225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977859 (or 5977854 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 149446225 is about 12224.8200395752. The cubic root of 149446225 is about 530.6746185686.

The spelling of 149446225 in words is "one hundred forty-nine million, four hundred forty-six thousand, two hundred twenty-five".