1523316641 has 16 divisors (see below), whose sum is σ = 1901211648. Its totient is φ = 1185742800.

The previous prime is 1523316607. The next prime is 1523316689. The reversal of 1523316641 is 1466133251.

It is a de Polignac number, because none of the positive numbers 2^k-1523316641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1523316598 and 1523316607.

It is not an unprimeable number, because it can be changed into a prime (1523316341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66326 + ... + 86288.

It is an arithmetic number, because the mean of its divisors is an integer number (118825728).

Almost surely, 2^1523316641 is an apocalyptic number.

1523316641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1523316641 is a deficient number, since it is larger than the sum of its proper divisors (377895007).

1523316641 is a wasteful number, since it uses less digits than its factorization.

1523316641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20972.

The product of its digits is 12960, while the sum is 32.

The square root of 1523316641 is about 39029.6892249990. The cubic root of 1523316641 is about 1150.6150814229.

Adding to 1523316641 its reverse (1466133251), we get a palindrome (2989449892).

The spelling of 1523316641 in words is "one billion, five hundred twenty-three million, three hundred sixteen thousand, six hundred forty-one".