155125 has 16 divisors (see below), whose sum is σ = 207792. Its totient is φ = 115200.

The previous prime is 155119. The next prime is 155137. The reversal of 155125 is 521551.

155125 = 5² + 6² + ... + 77².

155125 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 8 ways, for example, as 26244 + 128881 = 162^2 + 359^2 .

It is not a de Polignac number, because 155125 - 2⁹ = 154613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2089 + ... + 2161.

It is an arithmetic number, because the mean of its divisors is an integer number (12987).

2¹⁵⁵¹²⁵ is an apocalyptic number.

155125 is the 279-th centered square number.

It is an amenable number.

155125 is a deficient number, since it is larger than the sum of its proper divisors (52667).

155125 is an equidigital number, since it uses as much as digits as its factorization.

155125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 95 counting only the distinct ones).

The product of its digits is 250, while the sum is 19.

The square root of 155125 is about 393.8591118662. The cubic root of 155125 is about 53.7312896839.

Adding to 155125 its reverse (521551), we get a palindrome (676676).

The spelling of 155125 in words is "one hundred fifty-five thousand, one hundred twenty-five".