149044789 has 2 divisors, whose sum is σ = 149044790. Its totient is φ = 149044788.

The previous prime is 149044781. The next prime is 149044817. The reversal of 149044789 is 987440941.

149044789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145684900 + 3359889 = 12070^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 149044789 - 2³ = 149044781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149044781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74522394 + 74522395.

It is an arithmetic number, because the mean of its divisors is an integer number (74522395).

Almost surely, 2^149044789 is an apocalyptic number.

It is an amenable number.

149044789 is a deficient number, since it is larger than the sum of its proper divisors (1).

149044789 is an equidigital number, since it uses as much as digits as its factorization.

149044789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 149044789 is about 12208.3901068077. The cubic root of 149044789 is about 530.1990340631.

The spelling of 149044789 in words is "one hundred forty-nine million, forty-four thousand, seven hundred eighty-nine".