155531036 has 24 divisors (see below), whose sum is σ = 287038080. Its totient is φ = 73535472.

The previous prime is 155531009. The next prime is 155531039. The reversal of 155531036 is 630135551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155531039) 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, 47591 + ... + 50753.

It is an arithmetic number, because the mean of its divisors is an integer number (11959920).

Almost surely, 2^155531036 is an apocalyptic number.

It is an amenable number.

155531036 is a deficient number, since it is larger than the sum of its proper divisors (131507044).

155531036 is a wasteful number, since it uses less digits than its factorization.

155531036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833 (or 3831 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 155531036 is about 12471.2082814778. The cubic root of 155531036 is about 537.7812896519.

Adding to 155531036 its reverse (630135551), we get a palindrome (785666587).

The spelling of 155531036 in words is "one hundred fifty-five million, five hundred thirty-one thousand, thirty-six".