101004539 has 4 divisors (see below), whose sum is σ = 101055024. Its totient is φ = 100954056.

The previous prime is 101004517. The next prime is 101004557. The reversal of 101004539 is 935400101.

It is a happy number.

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 101004539 - 2¹² = 101000443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101007539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22112 + ... + 26285.

It is an arithmetic number, because the mean of its divisors is an integer number (25263756).

Almost surely, 2^101004539 is an apocalyptic number.

101004539 is a deficient number, since it is larger than the sum of its proper divisors (50485).

101004539 is an equidigital number, since it uses as much as digits as its factorization.

101004539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50484.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 101004539 is about 10050.1014422741. The cubic root of 101004539 is about 465.7079269683.

The spelling of 101004539 in words is "one hundred one million, four thousand, five hundred thirty-nine".