153199449 has 12 divisors (see below), whose sum is σ = 238310436. Its totient is φ = 94276512.

The previous prime is 153199441. The next prime is 153199463. The reversal of 153199449 is 944991351.

153199449 is a `hidden beast` number, since 15 + 3 + 199 + 449 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 69806025 + 83393424 = 8355^2 + 9132^2 .

It is not a de Polignac number, because 153199449 - 2³ = 153199441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153199441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 654582 + ... + 654815.

It is an arithmetic number, because the mean of its divisors is an integer number (19859203).

Almost surely, 2^153199449 is an apocalyptic number.

It is an amenable number.

153199449 is a deficient number, since it is larger than the sum of its proper divisors (85110987).

153199449 is a wasteful number, since it uses less digits than its factorization.

153199449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309416 (or 1309413 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 153199449 is about 12377.3764990809. The cubic root of 153199449 is about 535.0804304500.

The spelling of 153199449 in words is "one hundred fifty-three million, one hundred ninety-nine thousand, four hundred forty-nine".