149148009 has 12 divisors (see below), whose sum is σ = 215684352. Its totient is φ = 99317400.

The previous prime is 149148007. The next prime is 149148019. The reversal of 149148009 is 900841941.

149148009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149148009 - 2¹ = 149148007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149148001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897 + ... + 17294.

It is an arithmetic number, because the mean of its divisors is an integer number (17973696).

Almost surely, 2^149148009 is an apocalyptic number.

It is an amenable number.

149148009 is a deficient number, since it is larger than the sum of its proper divisors (66536343).

149148009 is a wasteful number, since it uses less digits than its factorization.

149148009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19108 (or 19105 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 149148009 is about 12212.6167957568. The cubic root of 149148009 is about 530.3214011177.

The spelling of 149148009 in words is "one hundred forty-nine million, one hundred forty-eight thousand, nine".