155004436 has 48 divisors (see below), whose sum is σ = 300056400. Its totient is φ = 69754880.

The previous prime is 155004427. The next prime is 155004439. The reversal of 155004436 is 634400551.

It can be written as a sum of positive squares in 8 ways, for example, as 7236100 + 147768336 = 2690^2 + 12156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155004439) 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 15 ways as a sum of consecutive naturals, for example, 147240 + ... + 148288.

It is an arithmetic number, because the mean of its divisors is an integer number (6251175).

Almost surely, 2^155004436 is an apocalyptic number.

It is an amenable number.

155004436 is a deficient number, since it is larger than the sum of its proper divisors (145051964).

155004436 is a wasteful number, since it uses less digits than its factorization.

155004436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 155004436 is about 12450.0777507612. The cubic root of 155004436 is about 537.1736599179.

Adding to 155004436 its reverse (634400551), we get a palindrome (789404987).

The spelling of 155004436 in words is "one hundred fifty-five million, four thousand, four hundred thirty-six".