2215453531 has 2 divisors, whose sum is σ = 2215453532. Its totient is φ = 2215453530.

The previous prime is 2215453517. The next prime is 2215453547. The reversal of 2215453531 is 1353545122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215453531 - 2¹⁵ = 2215420763 is a prime.

It is a super-2 number, since 2×2215453531² = 9816468696040735922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215453493 and 2215453502.

It is not a weakly prime, because it can be changed into another prime (2215453501) 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 as a sum of consecutive naturals, namely, 1107726765 + 1107726766.

It is an arithmetic number, because the mean of its divisors is an integer number (1107726766).

Almost surely, 2^2215453531 is an apocalyptic number.

2215453531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215453531 is an equidigital number, since it uses as much as digits as its factorization.

2215453531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 31.

The square root of 2215453531 is about 47068.6045151118. The cubic root of 2215453531 is about 1303.6296063940.

Adding to 2215453531 its reverse (1353545122), we get a palindrome (3568998653).

The spelling of 2215453531 in words is "two billion, two hundred fifteen million, four hundred fifty-three thousand, five hundred thirty-one".