13061958 has 64 divisors (see below), whose sum is σ = 32901120. Its totient is φ = 3364992.

The previous prime is 13061957. The next prime is 13062017. The reversal of 13061958 is 85916031.

It is a super-2 number, since 2×13061958² = 341229493587528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13061957) 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 31 ways as a sum of consecutive naturals, for example, 25408 + ... + 25916.

It is an arithmetic number, because the mean of its divisors is an integer number (514080).

Almost surely, 2^13061958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13061958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16450560).

13061958 is an abundant number, since it is smaller than the sum of its proper divisors (19839162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13061958 is a wasteful number, since it uses less digits than its factorization.

13061958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 13061958 is about 3614.1330910745. The cubic root of 13061958 is about 235.5064255981.

Adding to 13061958 its reverse (85916031), we get a palindrome (98977989).

The spelling of 13061958 in words is "thirteen million, sixty-one thousand, nine hundred fifty-eight".