9001481 has 2 divisors, whose sum is σ = 9001482. Its totient is φ = 9001480.

The previous prime is 9001463. The next prime is 9001493. The reversal of 9001481 is 1841009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7513081 + 1488400 = 2741^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 9001481 - 2⁶ = 9001417 is a prime.

It is a super-2 number, since 2×9001481² = 162053320386722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9001781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500740 + 4500741.

It is an arithmetic number, because the mean of its divisors is an integer number (4500741).

Almost surely, 2^9001481 is an apocalyptic number.

It is an amenable number.

9001481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9001481 is an equidigital number, since it uses as much as digits as its factorization.

9001481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 9001481 is about 3000.2468231797. The cubic root of 9001481 is about 208.0197913244.

The spelling of 9001481 in words is "nine million, one thousand, four hundred eighty-one".