1565045104 has 60 divisors (see below), whose sum is σ = 3602474784. Its totient is φ = 656447232.

The previous prime is 1565045047. The next prime is 1565045107. The reversal of 1565045104 is 4015405651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1565045107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15612 + ... + 58084.

Almost surely, 2^1565045104 is an apocalyptic number.

1565045104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1565045104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801237392).

1565045104 is an abundant number, since it is smaller than the sum of its proper divisors (2037429680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1565045104 is a wasteful number, since it uses less digits than its factorization.

1565045104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42542 (or 42529 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1565045104 is about 39560.6509552105. The cubic root of 1565045104 is about 1161.0269106962.

The spelling of 1565045104 in words is "one billion, five hundred sixty-five million, forty-five thousand, one hundred four".