149714989 has 4 divisors (see below), whose sum is σ = 149767324. Its totient is φ = 149662656.

The previous prime is 149714977. The next prime is 149714993. The reversal of 149714989 is 989417941.

149714989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989417941 = 3083 ⋅320927.

It can be written as a sum of positive squares in 2 ways, for example, as 56881764 + 92833225 = 7542^2 + 9635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149714989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149714969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21612 + ... + 27685.

It is an arithmetic number, because the mean of its divisors is an integer number (37441831).

Almost surely, 2^149714989 is an apocalyptic number.

It is an amenable number.

149714989 is a deficient number, since it is larger than the sum of its proper divisors (52335).

149714989 is an equidigital number, since it uses as much as digits as its factorization.

149714989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52334.

The product of its digits is 653184, while the sum is 52.

The square root of 149714989 is about 12235.8076562195. The cubic root of 149714989 is about 530.9925496925.

The spelling of 149714989 in words is "one hundred forty-nine million, seven hundred fourteen thousand, nine hundred eighty-nine".