537039961 has 2 divisors, whose sum is σ = 537039962. Its totient is φ = 537039960.

The previous prime is 537039869. The next prime is 537039977. The reversal of 537039961 is 169930735.

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., 483164361 + 53875600 = 21981^2 + 7340^2 .

It is a cyclic number.

It is not a de Polignac number, because 537039961 - 2⁹ = 537039449 is a prime.

It is not a weakly prime, because it can be changed into another prime (537039991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268519980 + 268519981.

It is an arithmetic number, because the mean of its divisors is an integer number (268519981).

Almost surely, 2^537039961 is an apocalyptic number.

It is an amenable number.

537039961 is a deficient number, since it is larger than the sum of its proper divisors (1).

537039961 is an equidigital number, since it uses as much as digits as its factorization.

537039961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 537039961 is about 23174.1226586898. The cubic root of 537039961 is about 812.8346353656.

The spelling of 537039961 in words is "five hundred thirty-seven million, thirty-nine thousand, nine hundred sixty-one".