537138739 has 2 divisors, whose sum is σ = 537138740. Its totient is φ = 537138738.

The previous prime is 537138737. The next prime is 537138769. The reversal of 537138739 is 937831735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 537138739 - 2¹ = 537138737 is a prime.

Together with 537138737, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (537138737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268569369 + 268569370.

It is an arithmetic number, because the mean of its divisors is an integer number (268569370).

Almost surely, 2^537138739 is an apocalyptic number.

537138739 is a deficient number, since it is larger than the sum of its proper divisors (1).

537138739 is an equidigital number, since it uses as much as digits as its factorization.

537138739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 46.

The square root of 537138739 is about 23176.2537740680. The cubic root of 537138739 is about 812.8844673231.

The spelling of 537138739 in words is "five hundred thirty-seven million, one hundred thirty-eight thousand, seven hundred thirty-nine".