1427216333 has 2 divisors, whose sum is σ = 1427216334. Its totient is φ = 1427216332.

The previous prime is 1427216327. The next prime is 1427216359. The reversal of 1427216333 is 3336127241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1425968644 + 1247689 = 37762^2 + 1117^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427216333 - 2²⁴ = 1410439117 is a prime.

It is a super-2 number, since 2×1427216333² = 4073892922363933778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1427216333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427216363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713608166 + 713608167.

It is an arithmetic number, because the mean of its divisors is an integer number (713608167).

Almost surely, 2^1427216333 is an apocalyptic number.

It is an amenable number.

1427216333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427216333 is an equidigital number, since it uses as much as digits as its factorization.

1427216333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The square root of 1427216333 is about 37778.5168184247. The cubic root of 1427216333 is about 1125.8916606336.

The spelling of 1427216333 in words is "one billion, four hundred twenty-seven million, two hundred sixteen thousand, three hundred thirty-three".