2231156072 has 32 divisors (see below), whose sum is σ = 4245998400. Its totient is φ = 1099010304.

The previous prime is 2231156063. The next prime is 2231156077. The reversal of 2231156072 is 2706511322.

It is a happy number.

It is a super-3 number, since 3×2231156072³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231156077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143579 + ... + 158357.

It is an arithmetic number, because the mean of its divisors is an integer number (132687450).

Almost surely, 2^2231156072 is an apocalyptic number.

It is an amenable number.

2231156072 is a deficient number, since it is larger than the sum of its proper divisors (2014842328).

2231156072 is a wasteful number, since it uses less digits than its factorization.

2231156072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15065 (or 15061 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2231156072 is about 47235.1148193799. The cubic root of 2231156072 is about 1306.7022841302.

Adding to 2231156072 its reverse (2706511322), we get a palindrome (4937667394).

The spelling of 2231156072 in words is "two billion, two hundred thirty-one million, one hundred fifty-six thousand, seventy-two".