537431143 has 2 divisors, whose sum is σ = 537431144. Its totient is φ = 537431142.

The previous prime is 537431117. The next prime is 537431227. The reversal of 537431143 is 341134735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 537431143 - 2²¹ = 535333991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (537431743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268715571 + 268715572.

It is an arithmetic number, because the mean of its divisors is an integer number (268715572).

Almost surely, 2^537431143 is an apocalyptic number.

537431143 is a deficient number, since it is larger than the sum of its proper divisors (1).

537431143 is an equidigital number, since it uses as much as digits as its factorization.

537431143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 537431143 is about 23182.5611829237. The cubic root of 537431143 is about 813.0319447715.

Adding to 537431143 its reverse (341134735), we get a palindrome (878565878).

The spelling of 537431143 in words is "five hundred thirty-seven million, four hundred thirty-one thousand, one hundred forty-three".