1447250121 has 24 divisors (see below), whose sum is σ = 2205216000. Its totient is φ = 912092832.

The previous prime is 1447250113. The next prime is 1447250173. The reversal of 1447250121 is 1210527441.

It is not a de Polignac number, because 1447250121 - 2³ = 1447250113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1447250521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73075 + ... + 90743.

It is an arithmetic number, because the mean of its divisors is an integer number (91884000).

Almost surely, 2^1447250121 is an apocalyptic number.

It is an amenable number.

1447250121 is a deficient number, since it is larger than the sum of its proper divisors (757965879).

1447250121 is a wasteful number, since it uses less digits than its factorization.

1447250121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18173 (or 18170 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1447250121 is about 38042.7407135711. The cubic root of 1447250121 is about 1131.1352365452.

Adding to 1447250121 its reverse (1210527441), we get a palindrome (2657777562).

The spelling of 1447250121 in words is "one billion, four hundred forty-seven million, two hundred fifty thousand, one hundred twenty-one".