1564130741 has 4 divisors (see below), whose sum is σ = 1566455532. Its totient is φ = 1561805952.

The previous prime is 1564130693. The next prime is 1564130759. The reversal of 1564130741 is 1470314651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 395174641 + 1168956100 = 19879^2 + 34190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1564130741 - 2⁶ = 1564130677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1564130698 and 1564130707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1564130791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161386 + ... + 1162731.

It is an arithmetic number, because the mean of its divisors is an integer number (391613883).

Almost surely, 2^1564130741 is an apocalyptic number.

It is an amenable number.

1564130741 is a deficient number, since it is larger than the sum of its proper divisors (2324791).

1564130741 is an equidigital number, since it uses as much as digits as its factorization.

1564130741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324790.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1564130741 is about 39549.0927961692. The cubic root of 1564130741 is about 1160.8007602684.

The spelling of 1564130741 in words is "one billion, five hundred sixty-four million, one hundred thirty thousand, seven hundred forty-one".