149703489 has 24 divisors (see below), whose sum is σ = 245132160. Its totient is φ = 87275232.

The previous prime is 149703467. The next prime is 149703497. The reversal of 149703489 is 984307941.

It is not a de Polignac number, because 149703489 - 2⁷ = 149703361 is a prime.

It is a super-3 number, since 3×149703489³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (149703419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31449 + ... + 35894.

It is an arithmetic number, because the mean of its divisors is an integer number (10213840).

Almost surely, 2^149703489 is an apocalyptic number.

149703489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

149703489 is a deficient number, since it is larger than the sum of its proper divisors (95428671).

149703489 is a wasteful number, since it uses less digits than its factorization.

149703489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67381 (or 67378 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 149703489 is about 12235.3377149959. The cubic root of 149703489 is about 530.9789537021.

The spelling of 149703489 in words is "one hundred forty-nine million, seven hundred three thousand, four hundred eighty-nine".