155115125 has 32 divisors (see below), whose sum is σ = 213542784. Its totient is φ = 111552000.

The previous prime is 155115083. The next prime is 155115143. The reversal of 155115125 is 521511551.

It is not a de Polignac number, because 155115125 - 2¹² = 155111029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155115094 and 155115103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132794 + ... + 133956.

It is an arithmetic number, because the mean of its divisors is an integer number (6673212).

Almost surely, 2^155115125 is an apocalyptic number.

It is an amenable number.

155115125 is a deficient number, since it is larger than the sum of its proper divisors (58427659).

155115125 is a wasteful number, since it uses less digits than its factorization.

155115125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1276 counting only the distinct ones).

The product of its digits is 1250, while the sum is 26.

The square root of 155115125 is about 12454.5222710468. The cubic root of 155115125 is about 537.3014951143.

Adding to 155115125 its reverse (521511551), we get a palindrome (676626676).

The spelling of 155115125 in words is "one hundred fifty-five million, one hundred fifteen thousand, one hundred twenty-five".