1214521471 has 2 divisors, whose sum is σ = 1214521472. Its totient is φ = 1214521470.

The previous prime is 1214521457. The next prime is 1214521493. The reversal of 1214521471 is 1741254121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1214521471 - 2²¹ = 1212424319 is a prime.

It is a super-3 number, since 3×1214521471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214521171) 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, 607260735 + 607260736.

It is an arithmetic number, because the mean of its divisors is an integer number (607260736).

Almost surely, 2^1214521471 is an apocalyptic number.

1214521471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214521471 is an equidigital number, since it uses as much as digits as its factorization.

1214521471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 28.

The square root of 1214521471 is about 34849.9852367257. The cubic root of 1214521471 is about 1066.9278843429.

Adding to 1214521471 its reverse (1741254121), we get a palindrome (2955775592).

The spelling of 1214521471 in words is "one billion, two hundred fourteen million, five hundred twenty-one thousand, four hundred seventy-one".