1632481 has 2 divisors, whose sum is σ = 1632482. Its totient is φ = 1632480.

The previous prime is 1632479. The next prime is 1632487. The reversal of 1632481 is 1842361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 968256 + 664225 = 984^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 1632481 - 2¹ = 1632479 is a prime.

It is a super-2 number, since 2×1632481² = 5329988430722, which contains 22 as substring.

Together with 1632479, it forms a pair of twin primes.

1632481 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1632487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816240 + 816241.

It is an arithmetic number, because the mean of its divisors is an integer number (816241).

2^1632481 is an apocalyptic number.

It is an amenable number.

1632481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1632481 is an equidigital number, since it uses as much as digits as its factorization.

1632481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 1632481 is about 1277.6857986219. The cubic root of 1632481 is about 117.7468719258.

The spelling of 1632481 in words is "one million, six hundred thirty-two thousand, four hundred eighty-one".