155161124 has 6 divisors (see below), whose sum is σ = 271531974. Its totient is φ = 77580560.

The previous prime is 155161121. The next prime is 155161129. The reversal of 155161124 is 421161551.

It can be written as a sum of positive squares in only one way, i.e., 148401124 + 6760000 = 12182^2 + 2600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155161093 and 155161102.

It is not an unprimeable number, because it can be changed into a prime (155161121) 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 as a sum of consecutive naturals, namely, 19395137 + ... + 19395144.

It is an arithmetic number, because the mean of its divisors is an integer number (45255329).

Almost surely, 2^155161124 is an apocalyptic number.

It is an amenable number.

155161124 is a deficient number, since it is larger than the sum of its proper divisors (116370850).

155161124 is a wasteful number, since it uses less digits than its factorization.

155161124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38790285 (or 38790283 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 155161124 is about 12456.3688127801. The cubic root of 155161124 is about 537.3546016672.

The spelling of 155161124 in words is "one hundred fifty-five million, one hundred sixty-one thousand, one hundred twenty-four".