2245231531 has 4 divisors (see below), whose sum is σ = 2377303992. Its totient is φ = 2113159072.

The previous prime is 2245231523. The next prime is 2245231553. The reversal of 2245231531 is 1351325422.

2245231531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1351325422 = 2 ⋅675662711.

It is a cyclic number.

It is not a de Polignac number, because 2245231531 - 2³ = 2245231523 is a prime.

It is a super-2 number, since 2×2245231531² = 10082129255593207922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2245231531.

It is not an unprimeable number, because it can be changed into a prime (2245231511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66036205 + ... + 66036238.

It is an arithmetic number, because the mean of its divisors is an integer number (594325998).

Almost surely, 2^2245231531 is an apocalyptic number.

2245231531 is a deficient number, since it is larger than the sum of its proper divisors (132072461).

2245231531 is a wasteful number, since it uses less digits than its factorization.

2245231531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132072460.

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

The square root of 2245231531 is about 47383.8741662182. The cubic root of 2245231531 is about 1309.4443443022. Note that the first 3 decimals are identical.

Adding to 2245231531 its reverse (1351325422), we get a palindrome (3596556953).

The spelling of 2245231531 in words is "two billion, two hundred forty-five million, two hundred thirty-one thousand, five hundred thirty-one".