125217263153 has 4 divisors (see below), whose sum is σ = 125220752448. Its totient is φ = 125213773860.

The previous prime is 125217263147. The next prime is 125217263167. The reversal of 125217263153 is 351362712521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 351362712521 = 7577 ⋅46372273.

It is a cyclic number.

It is not a de Polignac number, because 125217263153 - 2⁸ = 125217262897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125217263753) 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, 1690253 + ... + 1762778.

It is an arithmetic number, because the mean of its divisors is an integer number (31305188112).

Almost surely, 2^125217263153 is an apocalyptic number.

It is an amenable number.

125217263153 is a deficient number, since it is larger than the sum of its proper divisors (3489295).

125217263153 is an equidigital number, since it uses as much as digits as its factorization.

125217263153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489294.

The product of its digits is 75600, while the sum is 38.

Adding to 125217263153 its reverse (351362712521), we get a palindrome (476579975674).

The spelling of 125217263153 in words is "one hundred twenty-five billion, two hundred seventeen million, two hundred sixty-three thousand, one hundred fifty-three".