2231541532 has 72 divisors (see below), whose sum is σ = 4471034400. Its totient is φ = 972639360.

The previous prime is 2231541493. The next prime is 2231541539. The reversal of 2231541532 is 2351451322.

It is a super-3 number, since 3×2231541532³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231541532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231541539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2427769 + ... + 2428687.

It is an arithmetic number, because the mean of its divisors is an integer number (62097700).

Almost surely, 2^2231541532 is an apocalyptic number.

2231541532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2231541532 is an abundant number, since it is smaller than the sum of its proper divisors (2239492868).

2231541532 is a wasteful number, since it uses less digits than its factorization.

2231541532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1134 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 2231541532 is about 47239.1948703616. The cubic root of 2231541532 is about 1306.7775294953. Note that the first 3 decimals are identical.

Adding to 2231541532 its reverse (2351451322), we get a palindrome (4582992854).

The spelling of 2231541532 in words is "two billion, two hundred thirty-one million, five hundred forty-one thousand, five hundred thirty-two".