155205448 has 16 divisors (see below), whose sum is σ = 301045500. Its totient is φ = 74926656.

The previous prime is 155205443. The next prime is 155205451. The reversal of 155205448 is 844502551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150356644 + 4848804 = 12262^2 + 2202^2 .

It is not an unprimeable number, because it can be changed into a prime (155205443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334263 + ... + 334726.

Almost surely, 2^155205448 is an apocalyptic number.

It is an amenable number.

155205448 is a deficient number, since it is larger than the sum of its proper divisors (145840052).

155205448 is a wasteful number, since it uses less digits than its factorization.

155205448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669024 (or 669020 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 155205448 is about 12458.1478559214. The cubic root of 155205448 is about 537.4057644782.

Adding to 155205448 its reverse (844502551), we get a palindrome (999707999).

The spelling of 155205448 in words is "one hundred fifty-five million, two hundred five thousand, four hundred forty-eight".