539521101 has 16 divisors (see below), whose sum is σ = 913475200. Its totient is φ = 308297664.

The previous prime is 539521067. The next prime is 539521109. The reversal of 539521101 is 101125935.

539521101 is a `hidden beast` number, since 5 + 39 + 521 + 101 = 666.

It is not a de Polignac number, because 539521101 - 2¹¹ = 539519053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539521109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427116 + ... + 1427493.

It is an arithmetic number, because the mean of its divisors is an integer number (57092200).

Almost surely, 2^539521101 is an apocalyptic number.

It is an amenable number.

539521101 is a deficient number, since it is larger than the sum of its proper divisors (373954099).

539521101 is a wasteful number, since it uses less digits than its factorization.

539521101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854625 (or 2854619 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 539521101 is about 23227.5935258046. The cubic root of 539521101 is about 814.0844856538.

The spelling of 539521101 in words is "five hundred thirty-nine million, five hundred twenty-one thousand, one hundred one".