1448425813 has 2 divisors, whose sum is σ = 1448425814. Its totient is φ = 1448425812.

The previous prime is 1448425807. The next prime is 1448425859. The reversal of 1448425813 is 3185248441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1197298404 + 251127409 = 34602^2 + 15847^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448425813 - 2²¹ = 1446328661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1448429813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724212906 + 724212907.

It is an arithmetic number, because the mean of its divisors is an integer number (724212907).

Almost surely, 2^1448425813 is an apocalyptic number.

It is an amenable number.

1448425813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448425813 is an equidigital number, since it uses as much as digits as its factorization.

1448425813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122880, while the sum is 40.

The square root of 1448425813 is about 38058.1898282091. The cubic root of 1448425813 is about 1131.4414509952.

The spelling of 1448425813 in words is "one billion, four hundred forty-eight million, four hundred twenty-five thousand, eight hundred thirteen".