155445446 has 16 divisors (see below), whose sum is σ = 255223248. Its totient is φ = 70567200.

The previous prime is 155445443. The next prime is 155445463. The reversal of 155445446 is 644544551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155445443) 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 7 ways as a sum of consecutive naturals, for example, 47420 + ... + 50591.

It is an arithmetic number, because the mean of its divisors is an integer number (15951453).

Almost surely, 2^155445446 is an apocalyptic number.

155445446 is a deficient number, since it is larger than the sum of its proper divisors (99777802).

155445446 is a wasteful number, since it uses less digits than its factorization.

155445446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98087.

The product of its digits is 192000, while the sum is 38.

The square root of 155445446 is about 12467.7763053401. The cubic root of 155445446 is about 537.6826230713.

Adding to 155445446 its reverse (644544551), we get a palindrome (799989997).

The spelling of 155445446 in words is "one hundred fifty-five million, four hundred forty-five thousand, four hundred forty-six".