531297433 has 2 divisors, whose sum is σ = 531297434. Its totient is φ = 531297432.

The previous prime is 531297427. The next prime is 531297451. The reversal of 531297433 is 334792135.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333135504 + 198161929 = 18252^2 + 14077^2 .

It is a cyclic number.

It is not a de Polignac number, because 531297433 - 2⁹ = 531296921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531297392 and 531297401.

It is not a weakly prime, because it can be changed into another prime (531297233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265648716 + 265648717.

It is an arithmetic number, because the mean of its divisors is an integer number (265648717).

Almost surely, 2^531297433 is an apocalyptic number.

It is an amenable number.

531297433 is a deficient number, since it is larger than the sum of its proper divisors (1).

531297433 is an equidigital number, since it uses as much as digits as its factorization.

531297433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 37.

The square root of 531297433 is about 23049.8900865058. The cubic root of 531297433 is about 809.9270538383.

The spelling of 531297433 in words is "five hundred thirty-one million, two hundred ninety-seven thousand, four hundred thirty-three".