149988999249 has 6 divisors (see below), whose sum is σ = 216650776706. Its totient is φ = 99992666160.

The previous prime is 149988999239. The next prime is 149988999263. The reversal of 149988999249 is 942999889941.

149988999249 is a `hidden beast` number, since 1 + 499 + 8 + 89 + 9 + 9 + 2 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78789683025 + 71199316224 = 280695^2 + 266832^2 .

It is not a de Polignac number, because 149988999249 - 2¹² = 149988995153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149988999229) 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 5 ways as a sum of consecutive naturals, for example, 8332722172 + ... + 8332722189.

Almost surely, 2^149988999249 is an apocalyptic number.

It is an amenable number.

149988999249 is a deficient number, since it is larger than the sum of its proper divisors (66661777457).

149988999249 is a wasteful number, since it uses less digits than its factorization.

149988999249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16665444367 (or 16665444364 counting only the distinct ones).

The product of its digits is 1088391168, while the sum is 81.

The spelling of 149988999249 in words is "one hundred forty-nine billion, nine hundred eighty-eight million, nine hundred ninety-nine thousand, two hundred forty-nine".