149646089 has 4 divisors (see below), whose sum is σ = 149672340. Its totient is φ = 149619840.

The previous prime is 149646037. The next prime is 149646097. The reversal of 149646089 is 980646941.

It is a happy number.

149646089 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: 980646941 = 5393 ⋅181837.

It can be written as a sum of positive squares in 2 ways, for example, as 82537225 + 67108864 = 9085^2 + 8192^2 .

It is a cyclic number.

It is not a de Polignac number, because 149646089 - 2⁸ = 149645833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149646589) 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, 572 + ... + 17309.

It is an arithmetic number, because the mean of its divisors is an integer number (37418085).

Almost surely, 2^149646089 is an apocalyptic number.

It is an amenable number.

149646089 is a deficient number, since it is larger than the sum of its proper divisors (26251).

149646089 is an equidigital number, since it uses as much as digits as its factorization.

149646089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26250.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 149646089 is about 12232.9918253876. The cubic root of 149646089 is about 530.9110815629.

The spelling of 149646089 in words is "one hundred forty-nine million, six hundred forty-six thousand, eighty-nine".