155132128 has 24 divisors (see below), whose sum is σ = 306594288. Its totient is φ = 77266944.

The previous prime is 155132077. The next prime is 155132129. The reversal of 155132128 is 821231551.

It is a junction number, because it is equal to n+sod(n) for n = 155132096 and 155132105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155132129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801 + ... + 17632.

It is an arithmetic number, because the mean of its divisors is an integer number (12774762).

Almost surely, 2^155132128 is an apocalyptic number.

It is an amenable number.

155132128 is a deficient number, since it is larger than the sum of its proper divisors (151462160).

155132128 is a wasteful number, since it uses less digits than its factorization.

155132128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18706 (or 18698 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 155132128 is about 12455.2048558023. The cubic root of 155132128 is about 537.3211265623.

Adding to 155132128 its reverse (821231551), we get a palindrome (976363679).

The spelling of 155132128 in words is "one hundred fifty-five million, one hundred thirty-two thousand, one hundred twenty-eight".