247214533 has 2 divisors, whose sum is σ = 247214534. Its totient is φ = 247214532.

The previous prime is 247214521. The next prime is 247214537. The reversal of 247214533 is 335412742.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165456769 + 81757764 = 12863^2 + 9042^2 .

It is a cyclic number.

It is not a de Polignac number, because 247214533 - 2⁹ = 247214021 is a prime.

It is a super-2 number, since 2×247214533² = 122230050652816178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247214495 and 247214504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247214537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123607266 + 123607267.

It is an arithmetic number, because the mean of its divisors is an integer number (123607267).

Almost surely, 2^247214533 is an apocalyptic number.

It is an amenable number.

247214533 is a deficient number, since it is larger than the sum of its proper divisors (1).

247214533 is an equidigital number, since it uses as much as digits as its factorization.

247214533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 247214533 is about 15723.0573680821. The cubic root of 247214533 is about 627.6121357458.

The spelling of 247214533 in words is "two hundred forty-seven million, two hundred fourteen thousand, five hundred thirty-three".