1001456 has 10 divisors (see below), whose sum is σ = 1940352. Its totient is φ = 500720.

The previous prime is 1001447. The next prime is 1001459. The reversal of 1001456 is 6541001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31280 + ... + 31311.

2^1001456 is an apocalyptic number.

1001456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1001456 is a deficient number, since it is larger than the sum of its proper divisors (938896).

1001456 is an equidigital number, since it uses as much as digits as its factorization.

1001456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62599 (or 62593 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1001456 is about 1000.7277352007. The cubic root of 1001456 is about 100.0485097975.

Adding to 1001456 its reverse (6541001), we get a palindrome (7542457).

The spelling of 1001456 in words is "one million, one thousand, four hundred fifty-six".