1566241147 has 2 divisors, whose sum is σ = 1566241148. Its totient is φ = 1566241146.

The previous prime is 1566241121. The next prime is 1566241151. The reversal of 1566241147 is 7411426651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1566241147 - 2¹⁵ = 1566208379 is a prime.

It is a super-2 number, since 2×1566241147² = 4906222661111751218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1566241177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 783120573 + 783120574.

It is an arithmetic number, because the mean of its divisors is an integer number (783120574).

Almost surely, 2^1566241147 is an apocalyptic number.

1566241147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1566241147 is an equidigital number, since it uses as much as digits as its factorization.

1566241147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 1566241147 is about 39575.7646420129. The cubic root of 1566241147 is about 1161.3225964271.

Adding to 1566241147 its reverse (7411426651), we get a palindrome (8977667798).

The spelling of 1566241147 in words is "one billion, five hundred sixty-six million, two hundred forty-one thousand, one hundred forty-seven".