149153769 has 12 divisors (see below), whose sum is σ = 215550192. Its totient is φ = 99387000.

The previous prime is 149153761. The next prime is 149153779. The reversal of 149153769 is 967351941.

It is not a de Polignac number, because 149153769 - 2³ = 149153761 is a prime.

It is a super-2 number, since 2×149153769² = 44493693613810722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149153761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34414 + ... + 38504.

It is an arithmetic number, because the mean of its divisors is an integer number (17962516).

Almost surely, 2^149153769 is an apocalyptic number.

It is an amenable number.

149153769 is a deficient number, since it is larger than the sum of its proper divisors (66396423).

149153769 is a wasteful number, since it uses less digits than its factorization.

149153769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148 (or 8145 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 149153769 is about 12212.8526151755. The cubic root of 149153769 is about 530.3282279201.

The spelling of 149153769 in words is "one hundred forty-nine million, one hundred fifty-three thousand, seven hundred sixty-nine".