539649061 has 8 divisors (see below), whose sum is σ = 625428864. Its totient is φ = 456041040.

The previous prime is 539649049. The next prime is 539649109. The reversal of 539649061 is 160946935.

539649061 = 3564² + 3565² + ... + 3605².

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

It is not a de Polignac number, because 539649061 - 2⁵ = 539649029 is a prime.

It is a super-2 number, since 2×539649061² = 582442218076363442, 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 = 539648999 and 539649017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539643061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542410 + ... + 543403.

It is an arithmetic number, because the mean of its divisors is an integer number (78178608).

Almost surely, 2^539649061 is an apocalyptic number.

It is an amenable number.

539649061 is a deficient number, since it is larger than the sum of its proper divisors (85779803).

539649061 is a wasteful number, since it uses less digits than its factorization.

539649061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085891.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 539649061 is about 23230.3478450065. The cubic root of 539649061 is about 814.1488402677.

The spelling of 539649061 in words is "five hundred thirty-nine million, six hundred forty-nine thousand, sixty-one".