537213091 has 2 divisors, whose sum is σ = 537213092. Its totient is φ = 537213090.

The previous prime is 537213067. The next prime is 537213121. The reversal of 537213091 is 190312735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 537213091 - 2⁹ = 537212579 is a prime.

It is not a weakly prime, because it can be changed into another prime (537213191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268606545 + 268606546.

It is an arithmetic number, because the mean of its divisors is an integer number (268606546).

Almost surely, 2^537213091 is an apocalyptic number.

537213091 is a deficient number, since it is larger than the sum of its proper divisors (1).

537213091 is an equidigital number, since it uses as much as digits as its factorization.

537213091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 537213091 is about 23177.8577741775. The cubic root of 537213091 is about 812.9219727154.

The spelling of 537213091 in words is "five hundred thirty-seven million, two hundred thirteen thousand, ninety-one".