2215153231 has 2 divisors, whose sum is σ = 2215153232. Its totient is φ = 2215153230.

The previous prime is 2215153217. The next prime is 2215153309. The reversal of 2215153231 is 1323515122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215153231 - 2¹⁵ = 2215120463 is a prime.

It is a super-3 number, since 3×2215153231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2215153196 and 2215153205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215153201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107576615 + 1107576616.

It is an arithmetic number, because the mean of its divisors is an integer number (1107576616).

Almost surely, 2^2215153231 is an apocalyptic number.

2215153231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215153231 is an equidigital number, since it uses as much as digits as its factorization.

2215153231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 2215153231 is about 47065.4143825378. The cubic root of 2215153231 is about 1303.5707023284.

Adding to 2215153231 its reverse (1323515122), we get a palindrome (3538668353).

The spelling of 2215153231 in words is "two billion, two hundred fifteen million, one hundred fifty-three thousand, two hundred thirty-one".