1504741681 has 3 divisors (see below), whose sum is σ = 1504780473. Its totient is φ = 1504702890.

The previous prime is 1504741669. The next prime is 1504741687. The reversal of 1504741681 is 1861474051.

The square root of 1504741681 is 38791.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1504741681 - 2²¹ = 1502644529 is a prime.

It is a super-2 number, since 2×1504741681² = 4528495053077411522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1504741681.

It is not an unprimeable number, because it can be changed into a prime (1504741687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19396 + ... + 58186.

It is an arithmetic number, because the mean of its divisors is an integer number (501593491).

Almost surely, 2^1504741681 is an apocalyptic number.

1504741681 is the 38791-st square number.

1504741681 is the 19396-th centered octagonal number.

It is an amenable number.

1504741681 is a deficient number, since it is larger than the sum of its proper divisors (38792).

1504741681 is an frugal number, since it uses more digits than its factorization.

1504741681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77582 (or 38791 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The cubic root of 1504741681 is about 1145.9191670897.

The spelling of 1504741681 in words is "one billion, five hundred four million, seven hundred forty-one thousand, six hundred eighty-one".