1448487481 has 9 divisors (see below), whose sum is σ = 1685285199. Its totient is φ = 1241332344.

The previous prime is 1448487479. The next prime is 1448487487. The reversal of 1448487481 is 1847848441.

The square root of 1448487481 is 38059.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 817674025 + 630813456 = 28595^2 + 25116^2 .

It is not a de Polignac number, because 1448487481 - 2¹ = 1448487479 is a prime.

It is a super-2 number, since 2×1448487481² = 4196231965227450722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1448487487) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 263695 + ... + 269131.

It is an arithmetic number, because the mean of its divisors is an integer number (187253911).

Almost surely, 2^1448487481 is an apocalyptic number.

1448487481 is the 38059-th square number.

1448487481 is the 19030-th centered octagonal number.

It is an amenable number.

1448487481 is a deficient number, since it is larger than the sum of its proper divisors (236797718).

1448487481 is an frugal number, since it uses more digits than its factorization.

1448487481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888 (or 5444 counting only the distinct ones).

The product of its digits is 917504, while the sum is 49.

The cubic root of 1448487481 is about 1131.4575081382.

Multiplying 1448487481 by its sum of digits (49), we get a square (70975886569 = 266413²).

1448487481 divided by its sum of digits (49) gives a square (29560969 = 5437²).

The spelling of 1448487481 in words is "one billion, four hundred forty-eight million, four hundred eighty-seven thousand, four hundred eighty-one".