1447400125 has 16 divisors (see below), whose sum is σ = 1808934192. Its totient is φ = 1156267200.

The previous prime is 1447400089. The next prime is 1447400153. The reversal of 1447400125 is 5210047441.

It can be written as a sum of positive squares in 8 ways, for example, as 40475044 + 1406925081 = 6362^2 + 37509^2 .

It is not a de Polignac number, because 1447400125 - 2⁷ = 1447399997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1447400093 and 1447400102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83727 + ... + 99523.

It is an arithmetic number, because the mean of its divisors is an integer number (113058387).

Almost surely, 2^1447400125 is an apocalyptic number.

It is an amenable number.

1447400125 is a deficient number, since it is larger than the sum of its proper divisors (361534067).

1447400125 is an equidigital number, since it uses as much as digits as its factorization.

1447400125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16545 (or 16535 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 1447400125 is about 38044.7121818526. The cubic root of 1447400125 is about 1131.1743150122.

Adding to 1447400125 its reverse (5210047441), we get a palindrome (6657447566).

The spelling of 1447400125 in words is "one billion, four hundred forty-seven million, four hundred thousand, one hundred twenty-five".