149299550449 has 45 divisors (see below), whose sum is σ = 185500725501. Its totient is φ = 119812741440.

The previous prime is 149299550419. The next prime is 149299550459. The reversal of 149299550449 is 944055992941.

The square root of 149299550449 is 386393.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 46335576049 + 102963974400 = 215257^2 + 320880^2 .

It is not a de Polignac number, because 149299550449 - 2⁵ = 149299550417 is a prime.

It is a super-2 number, since 2×149299550449² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149299550419) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 781672944 + ... + 781673134.

Almost surely, 2^149299550449 is an apocalyptic number.

149299550449 is the 386393-rd square number.

149299550449 is the 193197-th centered octagonal number.

It is an amenable number.

149299550449 is a deficient number, since it is larger than the sum of its proper divisors (36201175052).

149299550449 is an frugal number, since it uses more digits than its factorization.

149299550449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 61.

The spelling of 149299550449 in words is "one hundred forty-nine billion, two hundred ninety-nine million, five hundred fifty thousand, four hundred forty-nine".