155230044 has 24 divisors (see below), whose sum is σ = 362557440. Its totient is φ = 51692784.

The previous prime is 155230039. The next prime is 155230079. The reversal of 155230044 is 440032551.

It is a junction number, because it is equal to n+sod(n) for n = 155229996 and 155230023.

It is a congruent number.

It is an unprimeable number.

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, 7717 + ... + 19235.

It is an arithmetic number, because the mean of its divisors is an integer number (15106560).

Almost surely, 2^155230044 is an apocalyptic number.

It is an amenable number.

155230044 is an abundant number, since it is smaller than the sum of its proper divisors (207327396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155230044 is a wasteful number, since it uses less digits than its factorization.

155230044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649 (or 12647 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 155230044 is about 12459.1349619466. The cubic root of 155230044 is about 537.4341512266.

Adding to 155230044 its reverse (440032551), we get a palindrome (595262595).

The spelling of 155230044 in words is "one hundred fifty-five million, two hundred thirty thousand, forty-four".