149152669 has 8 divisors (see below), whose sum is σ = 150419160. Its totient is φ = 147890496.

The previous prime is 149152639. The next prime is 149152673. The reversal of 149152669 is 966251941.

It can be written as a sum of positive squares in 4 ways, for example, as 18164644 + 130988025 = 4262^2 + 11445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149152669 - 2⁵ = 149152637 is a prime.

It is a super-2 number, since 2×149152669² = 44493037339647122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149152639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120747 + ... + 121975.

It is an arithmetic number, because the mean of its divisors is an integer number (18802395).

Almost surely, 2^149152669 is an apocalyptic number.

It is an amenable number.

149152669 is a deficient number, since it is larger than the sum of its proper divisors (1266491).

149152669 is a wasteful number, since it uses less digits than its factorization.

149152669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159.

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

The square root of 149152669 is about 12212.8075805689. The cubic root of 149152669 is about 530.3269242041.

The spelling of 149152669 in words is "one hundred forty-nine million, one hundred fifty-two thousand, six hundred sixty-nine".