529138739 has 4 divisors (see below), whose sum is σ = 543439824. Its totient is φ = 514837656.

The previous prime is 529138723. The next prime is 529138741. The reversal of 529138739 is 937831925.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 529138739 - 2⁴ = 529138723 is a prime.

It is a super-2 number, since 2×529138739² = 559975610221020242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 529138693 and 529138702.

It is not an unprimeable number, because it can be changed into a prime (529138639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7150487 + ... + 7150560.

It is an arithmetic number, because the mean of its divisors is an integer number (135859956).

Almost surely, 2^529138739 is an apocalyptic number.

529138739 is a deficient number, since it is larger than the sum of its proper divisors (14301085).

529138739 is a wasteful number, since it uses less digits than its factorization.

529138739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14301084.

The product of its digits is 408240, while the sum is 47.

The square root of 529138739 is about 23003.0158674901. The cubic root of 529138739 is about 808.8286371112.

The spelling of 529138739 in words is "five hundred twenty-nine million, one hundred thirty-eight thousand, seven hundred thirty-nine".