1564541045 has 8 divisors (see below), whose sum is σ = 1877663160. Its totient is φ = 1251490240.

The previous prime is 1564541021. The next prime is 1564541063. The reversal of 1564541045 is 5401454651.

It can be written as a sum of positive squares in 4 ways, for example, as 249608401 + 1314932644 = 15799^2 + 36262^2 .

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

It is not a de Polignac number, because 1564541045 - 2¹⁸ = 1564278901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1564540996 and 1564541014.

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, 68135 + ... + 88155.

It is an arithmetic number, because the mean of its divisors is an integer number (234707895).

Almost surely, 2^1564541045 is an apocalyptic number.

It is an amenable number.

1564541045 is a deficient number, since it is larger than the sum of its proper divisors (313122115).

1564541045 is a wasteful number, since it uses less digits than its factorization.

1564541045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35655.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 1564541045 is about 39554.2797305172. The cubic root of 1564541045 is about 1160.9022521157.

Adding to 1564541045 its reverse (5401454651), we get a palindrome (6965995696).

The spelling of 1564541045 in words is "one billion, five hundred sixty-four million, five hundred forty-one thousand, forty-five".