2125449481 has 8 divisors (see below), whose sum is σ = 2220140160. Its totient is φ = 2030948832.

The previous prime is 2125449479. The next prime is 2125449493. The reversal of 2125449481 is 1849445212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125449481 - 2¹ = 2125449479 is a prime.

It is a super-2 number, since 2×2125449481² = 9035070992566338722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125449281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24396 + ... + 69613.

It is an arithmetic number, because the mean of its divisors is an integer number (277517520).

Almost surely, 2^2125449481 is an apocalyptic number.

It is an amenable number.

2125449481 is a deficient number, since it is larger than the sum of its proper divisors (94690679).

2125449481 is an equidigital number, since it uses as much as digits as its factorization.

2125449481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95015.

The product of its digits is 92160, while the sum is 40.

The square root of 2125449481 is about 46102.5973346405. The cubic root of 2125449481 is about 1285.7314353874.

The spelling of 2125449481 in words is "two billion, one hundred twenty-five million, four hundred forty-nine thousand, four hundred eighty-one".