155324020 has 12 divisors (see below), whose sum is σ = 326180484. Its totient is φ = 62129600.

The previous prime is 155324011. The next prime is 155324047. The reversal of 155324020 is 20423551.

It can be written as a sum of positive squares in 2 ways, for example, as 112656996 + 42667024 = 10614^2 + 6532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155323982 and 155324000.

It is a congruent number.

It is an unprimeable number.

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, 3883081 + ... + 3883120.

It is an arithmetic number, because the mean of its divisors is an integer number (27181707).

Almost surely, 2^155324020 is an apocalyptic number.

155324020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155324020 is an abundant number, since it is smaller than the sum of its proper divisors (170856464).

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

155324020 is a wasteful number, since it uses less digits than its factorization.

155324020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7766210 (or 7766208 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 155324020 is about 12462.9057606964. The cubic root of 155324020 is about 537.5425832497.

Adding to 155324020 its reverse (20423551), we get a palindrome (175747571).

The spelling of 155324020 in words is "one hundred fifty-five million, three hundred twenty-four thousand, twenty".