1504641 has 8 divisors (see below), whose sum is σ = 2016544. Its totient is φ = 997920.

The previous prime is 1504631. The next prime is 1504651. The reversal of 1504641 is 1464051.

It is an interprime number because it is at equal distance from previous prime (1504631) and next prime (1504651).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1504641 - 2⁵ = 1504609 is a prime.

It is a Duffinian number.

1504641 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1504631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556 + ... + 1821.

It is an arithmetic number, because the mean of its divisors is an integer number (252068).

2^1504641 is an apocalyptic number.

It is an amenable number.

1504641 is a deficient number, since it is larger than the sum of its proper divisors (511903).

1504641 is a wasteful number, since it uses less digits than its factorization.

1504641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1504641 is about 1226.6380884352. The cubic root of 1504641 is about 114.5893609024.

Adding to 1504641 its reverse (1464051), we get a palindrome (2968692).

It can be divided in two parts, 1504 and 641, that added together give a triangular number (2145 = T₆₅).

The spelling of 1504641 in words is "one million, five hundred four thousand, six hundred forty-one".