125028193 has 4 divisors (see below), whose sum is σ = 129339540. Its totient is φ = 120716848.

The previous prime is 125028181. The next prime is 125028199. The reversal of 125028193 is 391820521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391820521 = 8059 ⋅48619.

It can be written as a sum of positive squares in 2 ways, for example, as 45050944 + 79977249 = 6712^2 + 8943^2 .

It is a cyclic number.

It is not a de Polignac number, because 125028193 - 2¹³ = 125020001 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125028199) 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, 2155630 + ... + 2155687.

It is an arithmetic number, because the mean of its divisors is an integer number (32334885).

Almost surely, 2^125028193 is an apocalyptic number.

It is an amenable number.

125028193 is a deficient number, since it is larger than the sum of its proper divisors (4311347).

125028193 is an equidigital number, since it uses as much as digits as its factorization.

125028193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311346.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 125028193 is about 11181.6006457036. The cubic root of 125028193 is about 500.0375878409.

It can be divided in two parts, 12 and 5028193, that added together give a palindrome (5028205).

The spelling of 125028193 in words is "one hundred twenty-five million, twenty-eight thousand, one hundred ninety-three".