149285789 has 16 divisors (see below), whose sum is σ = 161989632. Its totient is φ = 137050368.

The previous prime is 149285779. The next prime is 149285839. The reversal of 149285789 is 987582941.

It is not a de Polignac number, because 149285789 - 2²⁰ = 148237213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149285789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149285779) 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 15 ways as a sum of consecutive naturals, for example, 200552 + ... + 201294.

It is an arithmetic number, because the mean of its divisors is an integer number (10124352).

Almost surely, 2^149285789 is an apocalyptic number.

It is an amenable number.

149285789 is a deficient number, since it is larger than the sum of its proper divisors (12703843).

149285789 is a wasteful number, since it uses less digits than its factorization.

149285789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its digits is 1451520, while the sum is 53.

The square root of 149285789 is about 12218.2563813336. The cubic root of 149285789 is about 530.4846510222.

The spelling of 149285789 in words is "one hundred forty-nine million, two hundred eighty-five thousand, seven hundred eighty-nine".