149999949 has 36 divisors (see below), whose sum is σ = 239784636. Its totient is φ = 90288000.

The previous prime is 149999909. The next prime is 149999957. The reversal of 149999949 is 949999941.

It can be written as a sum of positive squares in 2 ways, for example, as 915849 + 149084100 = 957^2 + 12210^2 .

It is not a de Polignac number, because 149999949 - 2⁷ = 149999821 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149999909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 196729 + ... + 197489.

Almost surely, 2^149999949 is an apocalyptic number.

It is an amenable number.

149999949 is a deficient number, since it is larger than the sum of its proper divisors (89784687).

149999949 is a wasteful number, since it uses less digits than its factorization.

149999949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 956 counting only the distinct ones).

The product of its digits is 8503056, while the sum is 63.

The square root of 149999949 is about 12247.4466318494. The cubic root of 149999949 is about 531.3292243740.

The spelling of 149999949 in words is "one hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".