537138694 has 8 divisors (see below), whose sum is σ = 827484048. Its totient is φ = 261310680.

The previous prime is 537138661. The next prime is 537138697. The reversal of 537138694 is 496831735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537138697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3629242 + ... + 3629389.

It is an arithmetic number, because the mean of its divisors is an integer number (103435506).

Almost surely, 2^537138694 is an apocalyptic number.

537138694 is a deficient number, since it is larger than the sum of its proper divisors (290345354).

537138694 is a wasteful number, since it uses less digits than its factorization.

537138694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7258670.

The product of its digits is 544320, while the sum is 46.

The square root of 537138694 is about 23176.2528032467. The cubic root of 537138694 is about 812.8844446227.

The spelling of 537138694 in words is "five hundred thirty-seven million, one hundred thirty-eight thousand, six hundred ninety-four".