2231505135 has 12 divisors (see below), whose sum is σ = 3867942312. Its totient is φ = 1190136048.

The previous prime is 2231505131. The next prime is 2231505173. The reversal of 2231505135 is 5315051322.

It is a happy number.

2231505135 is a `hidden beast` number, since 2 + 23 + 1 + 505 + 135 = 666.

It is not a de Polignac number, because 2231505135 - 2² = 2231505131 is a prime.

It is a super-3 number, since 3×2231505135³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231505099 and 2231505108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231505131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24794457 + ... + 24794546.

It is an arithmetic number, because the mean of its divisors is an integer number (322328526).

Almost surely, 2^2231505135 is an apocalyptic number.

2231505135 is a deficient number, since it is larger than the sum of its proper divisors (1636437177).

2231505135 is a wasteful number, since it uses less digits than its factorization.

2231505135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49589014 (or 49589011 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 2231505135 is about 47238.8096272546. The cubic root of 2231505135 is about 1306.7704248340.

Adding to 2231505135 its reverse (5315051322), we get a palindrome (7546556457).

The spelling of 2231505135 in words is "two billion, two hundred thirty-one million, five hundred five thousand, one hundred thirty-five".