125284449 has 4 divisors (see below), whose sum is σ = 167045936. Its totient is φ = 83522964.

The previous prime is 125284447. The next prime is 125284457. The reversal of 125284449 is 944482521.

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 not a de Polignac number, because 125284449 - 2¹ = 125284447 is a prime.

It is a super-2 number, since 2×125284449² = 31392386322467202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125284447) 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, 20880739 + ... + 20880744.

It is an arithmetic number, because the mean of its divisors is an integer number (41761484).

Almost surely, 2^125284449 is an apocalyptic number.

It is an amenable number.

125284449 is a deficient number, since it is larger than the sum of its proper divisors (41761487).

125284449 is an equidigital number, since it uses as much as digits as its factorization.

125284449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41761486.

The product of its digits is 92160, while the sum is 39.

The square root of 125284449 is about 11193.0536048033. The cubic root of 125284449 is about 500.3789780121.

The spelling of 125284449 in words is "one hundred twenty-five million, two hundred eighty-four thousand, four hundred forty-nine".