1485925481 has 2 divisors, whose sum is σ = 1485925482. Its totient is φ = 1485925480.

The previous prime is 1485925453. The next prime is 1485925487. The reversal of 1485925481 is 1845295841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1430049856 + 55875625 = 37816^2 + 7475^2 .

It is an emirp because it is prime and its reverse (1845295841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1485925481 is a prime.

It is a super-2 number, since 2×1485925481² = 4415949070170162722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1485925487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742962740 + 742962741.

It is an arithmetic number, because the mean of its divisors is an integer number (742962741).

Almost surely, 2^1485925481 is an apocalyptic number.

It is an amenable number.

1485925481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1485925481 is an equidigital number, since it uses as much as digits as its factorization.

1485925481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 47.

The square root of 1485925481 is about 38547.7039653466. The cubic root of 1485925481 is about 1141.1226964336.

The spelling of 1485925481 in words is "one billion, four hundred eighty-five million, nine hundred twenty-five thousand, four hundred eighty-one".