155441232 has 30 divisors (see below), whose sum is σ = 435019962. Its totient is φ = 51813696.

The previous prime is 155441227. The next prime is 155441233. The reversal of 155441232 is 232144551.

It can be written as a sum of positive squares in only one way, i.e., 150405696 + 5035536 = 12264^2 + 2244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155441196 and 155441205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155441233) 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 5 ways as a sum of consecutive naturals, for example, 539583 + ... + 539870.

Almost surely, 2^155441232 is an apocalyptic number.

155441232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155441232 is an abundant number, since it is smaller than the sum of its proper divisors (279578730).

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

155441232 is a wasteful number, since it uses less digits than its factorization.

155441232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079467 (or 1079458 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 155441232 is about 12467.6073085416. The cubic root of 155441232 is about 537.6777643141.

Adding to 155441232 its reverse (232144551), we get a palindrome (387585783).

The spelling of 155441232 in words is "one hundred fifty-five million, four hundred forty-one thousand, two hundred thirty-two".