2231541547 has 2 divisors, whose sum is σ = 2231541548. Its totient is φ = 2231541546.

The previous prime is 2231541539. The next prime is 2231541629. The reversal of 2231541547 is 7451451322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231541547 - 2³ = 2231541539 is a prime.

It is a super-3 number, since 3×2231541547³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231541647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115770773 + 1115770774.

It is an arithmetic number, because the mean of its divisors is an integer number (1115770774).

Almost surely, 2^2231541547 is an apocalyptic number.

2231541547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231541547 is an equidigital number, since it uses as much as digits as its factorization.

2231541547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 34.

The square root of 2231541547 is about 47239.1950291281. The cubic root of 2231541547 is about 1306.7775324233. Note that the first 3 decimals are identical.

Adding to 2231541547 its reverse (7451451322), we get a palindrome (9682992869).

The spelling of 2231541547 in words is "two billion, two hundred thirty-one million, five hundred forty-one thousand, five hundred forty-seven".