125027261 has 4 divisors (see below), whose sum is σ = 125051712. Its totient is φ = 125002812.

The previous prime is 125027233. The next prime is 125027267. The reversal of 125027261 is 162720521.

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.

It is a cyclic number.

It is not a de Polignac number, because 125027261 - 2²⁶ = 57918397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125027261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125027267) 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, 1301 + ... + 15866.

It is an arithmetic number, because the mean of its divisors is an integer number (31262928).

Almost surely, 2^125027261 is an apocalyptic number.

It is an amenable number.

125027261 is a deficient number, since it is larger than the sum of its proper divisors (24451).

125027261 is an equidigital number, since it uses as much as digits as its factorization.

125027261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24450.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 125027261 is about 11181.5589700184. The cubic root of 125027261 is about 500.0363453580.

Adding to 125027261 its reverse (162720521), we get a palindrome (287747782).

The spelling of 125027261 in words is "one hundred twenty-five million, twenty-seven thousand, two hundred sixty-one".