1521606045 has 8 divisors (see below), whose sum is σ = 2434569696. Its totient is φ = 811523216.

The previous prime is 1521606001. The next prime is 1521606061. The reversal of 1521606045 is 5406061251.

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

It is a cyclic number.

It is not a de Polignac number, because 1521606045 - 2¹⁰ = 1521605021 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 50720187 + ... + 50720216.

It is an arithmetic number, because the mean of its divisors is an integer number (304321212).

Almost surely, 2^1521606045 is an apocalyptic number.

1521606045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1521606045 is a deficient number, since it is larger than the sum of its proper divisors (912963651).

1521606045 is a wasteful number, since it uses less digits than its factorization.

1521606045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101440411.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1521606045 is about 39007.7690338732. The cubic root of 1521606045 is about 1150.1842288342.

Adding to 1521606045 its reverse (5406061251), we get a palindrome (6927667296).

The spelling of 1521606045 in words is "one billion, five hundred twenty-one million, six hundred six thousand, forty-five".