149683489 has 2 divisors, whose sum is σ = 149683490. Its totient is φ = 149683488.

The previous prime is 149683459. The next prime is 149683553. The reversal of 149683489 is 984386941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105925264 + 43758225 = 10292^2 + 6615^2 .

It is a cyclic number.

It is not a de Polignac number, because 149683489 - 2¹⁹ = 149159201 is a prime.

It is not a weakly prime, because it can be changed into another prime (149683409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74841744 + 74841745.

It is an arithmetic number, because the mean of its divisors is an integer number (74841745).

Almost surely, 2^149683489 is an apocalyptic number.

It is an amenable number.

149683489 is a deficient number, since it is larger than the sum of its proper divisors (1).

149683489 is an equidigital number, since it uses as much as digits as its factorization.

149683489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 52.

The square root of 149683489 is about 12234.5203829165. The cubic root of 149683489 is about 530.9553068428.

The spelling of 149683489 in words is "one hundred forty-nine million, six hundred eighty-three thousand, four hundred eighty-nine".