149669125 has 8 divisors (see below), whose sum is σ = 186787224. Its totient is φ = 119735200.

The previous prime is 149669077. The next prime is 149669141. The reversal of 149669125 is 521966941.

It can be written as a sum of positive squares in 4 ways, for example, as 2604996 + 147064129 = 1614^2 + 12127^2 .

It is not a de Polignac number, because 149669125 - 2⁷ = 149668997 is a prime.

It is a super-3 number, since 3×149669125³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 598552 + ... + 598801.

It is an arithmetic number, because the mean of its divisors is an integer number (23348403).

Almost surely, 2^149669125 is an apocalyptic number.

It is an amenable number.

149669125 is a deficient number, since it is larger than the sum of its proper divisors (37118099).

149669125 is an equidigital number, since it uses as much as digits as its factorization.

149669125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197368 (or 1197358 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 149669125 is about 12233.9333413257. The cubic root of 149669125 is about 530.9383223688.

The spelling of 149669125 in words is "one hundred forty-nine million, six hundred sixty-nine thousand, one hundred twenty-five".