1521545045 has 8 divisors (see below), whose sum is σ = 1835030400. Its totient is φ = 1211118480.

The previous prime is 1521545027. The next prime is 1521545057. The reversal of 1521545045 is 5405451251.

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

It is not a de Polignac number, because 1521545045 - 2¹⁰ = 1521544021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763601 + ... + 765590.

It is an arithmetic number, because the mean of its divisors is an integer number (229378800).

Almost surely, 2^1521545045 is an apocalyptic number.

It is an amenable number.

1521545045 is a deficient number, since it is larger than the sum of its proper divisors (313485355).

1521545045 is a wasteful number, since it uses less digits than its factorization.

1521545045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529395.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 1521545045 is about 39006.9871305129. The cubic root of 1521545045 is about 1150.1688586325.

Adding to 1521545045 its reverse (5405451251), we get a palindrome (6926996296).

The spelling of 1521545045 in words is "one billion, five hundred twenty-one million, five hundred forty-five thousand, forty-five".