149852169 has 6 divisors (see below), whose sum is σ = 216453146. Its totient is φ = 99901440.

The previous prime is 149852167. The next prime is 149852189. The reversal of 149852169 is 961258941.

It can be written as a sum of positive squares in only one way, i.e., 116640000 + 33212169 = 10800^2 + 5763^2 .

It is not a de Polignac number, because 149852169 - 2¹ = 149852167 is a prime.

It is a super-2 number, since 2×149852169² = 44911345108009122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149852167) by changing a digit.

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

It is an upside-down number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8325112 + ... + 8325129.

Almost surely, 2^149852169 is an apocalyptic number.

It is an amenable number.

149852169 is a deficient number, since it is larger than the sum of its proper divisors (66600977).

149852169 is a wasteful number, since it uses less digits than its factorization.

149852169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16650247 (or 16650244 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 149852169 is about 12241.4120509033. The cubic root of 149852169 is about 531.1546784639.

The spelling of 149852169 in words is "one hundred forty-nine million, eight hundred fifty-two thousand, one hundred sixty-nine".