125285101 has 4 divisors (see below), whose sum is σ = 128198752. Its totient is φ = 122371452.

The previous prime is 125285089. The next prime is 125285131. The reversal of 125285101 is 101582521.

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: 101582521 = 223 ⋅455527.

It is a cyclic number.

It is not a de Polignac number, because 125285101 - 2¹⁵ = 125252333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125285131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456761 + ... + 1456846.

It is an arithmetic number, because the mean of its divisors is an integer number (32049688).

Almost surely, 2^125285101 is an apocalyptic number.

It is an amenable number.

125285101 is a deficient number, since it is larger than the sum of its proper divisors (2913651).

125285101 is an equidigital number, since it uses as much as digits as its factorization.

125285101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913650.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 125285101 is about 11193.0827299721. The cubic root of 125285101 is about 500.3798460276.

The spelling of 125285101 in words is "one hundred twenty-five million, two hundred eighty-five thousand, one hundred one".