2231631569 has 2 divisors, whose sum is σ = 2231631570. Its totient is φ = 2231631568.

The previous prime is 2231631547. The next prime is 2231631617. The reversal of 2231631569 is 9651361322.

2231631569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1476096400 + 755535169 = 38420^2 + 27487^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231631569 - 2²⁰ = 2230582993 is a prime.

It is a super-3 number, since 3×2231631569³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2231636569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115815784 + 1115815785.

It is an arithmetic number, because the mean of its divisors is an integer number (1115815785).

Almost surely, 2^2231631569 is an apocalyptic number.

It is an amenable number.

2231631569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231631569 is an equidigital number, since it uses as much as digits as its factorization.

2231631569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 2231631569 is about 47240.1478511657. The cubic root of 2231631569 is about 1306.7951043039.

The spelling of 2231631569 in words is "two billion, two hundred thirty-one million, six hundred thirty-one thousand, five hundred sixty-nine".