155540148 has 24 divisors (see below), whose sum is σ = 365029728. Its totient is φ = 51546336.

The previous prime is 155540141. The next prime is 155540149. The reversal of 155540148 is 841045551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155540141) 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, 35386 + ... + 39537.

It is an arithmetic number, because the mean of its divisors is an integer number (15209572).

Almost surely, 2^155540148 is an apocalyptic number.

It is an amenable number.

155540148 is an abundant number, since it is smaller than the sum of its proper divisors (209489580).

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

155540148 is a wasteful number, since it uses less digits than its factorization.

155540148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75103 (or 75101 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 155540148 is about 12471.5735975858. The cubic root of 155540148 is about 537.7917916661.

Adding to 155540148 its reverse (841045551), we get a palindrome (996585699).

The spelling of 155540148 in words is "one hundred fifty-five million, five hundred forty thousand, one hundred forty-eight".