2231541515 has 16 divisors (see below), whose sum is σ = 3087488448. Its totient is φ = 1516655616.

The previous prime is 2231541493. The next prime is 2231541539. The reversal of 2231541515 is 5151451322.

It is not a de Polignac number, because 2231541515 - 2²⁶ = 2164432651 is a prime.

It is a super-3 number, since 3×2231541515³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 278162 + ... + 286071.

It is an arithmetic number, because the mean of its divisors is an integer number (192968028).

Almost surely, 2^2231541515 is an apocalyptic number.

2231541515 is a deficient number, since it is larger than the sum of its proper divisors (855946933).

2231541515 is a wasteful number, since it uses less digits than its factorization.

2231541515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564358.

The product of its digits is 6000, while the sum is 29.

The square root of 2231541515 is about 47239.1946904263. The cubic root of 2231541515 is about 1306.7775261769. Note that the first 3 decimals are identical.

Adding to 2231541515 its reverse (5151451322), we get a palindrome (7382992837).

The spelling of 2231541515 in words is "two billion, two hundred thirty-one million, five hundred forty-one thousand, five hundred fifteen".