13420539 has 32 divisors (see below), whose sum is σ = 22022400. Its totient is φ = 8009280.

The previous prime is 13420499. The next prime is 13420541. The reversal of 13420539 is 93502431.

13420539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13420539 - 2¹⁷ = 13289467 is a prime.

It is a super-2 number, since 2×13420539² = 360221734101042, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (13420139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21372 + ... + 21990.

It is an arithmetic number, because the mean of its divisors is an integer number (688200).

Almost surely, 2^13420539 is an apocalyptic number.

13420539 is a deficient number, since it is larger than the sum of its proper divisors (8601861).

13420539 is a wasteful number, since it uses less digits than its factorization.

13420539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 13420539 is about 3663.4053829736. The cubic root of 13420539 is about 237.6420660649.

The spelling of 13420539 in words is "thirteen million, four hundred twenty thousand, five hundred thirty-nine".