125213026 has 4 divisors (see below), whose sum is σ = 187819542. Its totient is φ = 62606512.

The previous prime is 125213009. The next prime is 125213027. The reversal of 125213026 is 620312521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 620312521 = 181 ⋅3427141.

It can be written as a sum of positive squares in only one way, i.e., 124211025 + 1002001 = 11145^2 + 1001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125212988 and 125213006.

It is not an unprimeable number, because it can be changed into a prime (125213027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31303255 + ... + 31303258.

Almost surely, 2^125213026 is an apocalyptic number.

125213026 is a deficient number, since it is larger than the sum of its proper divisors (62606516).

125213026 is an equidigital number, since it uses as much as digits as its factorization.

125213026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62606515.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 125213026 is about 11189.8626443759. The cubic root of 125213026 is about 500.2838734679.

Adding to 125213026 its reverse (620312521), we get a palindrome (745525547).

The spelling of 125213026 in words is "one hundred twenty-five million, two hundred thirteen thousand, twenty-six".