13065972 has 12 divisors (see below), whose sum is σ = 30487296. Its totient is φ = 4355320.

The previous prime is 13065971. The next prime is 13065991. The reversal of 13065972 is 27956031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13065971) 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, 544404 + ... + 544427.

It is an arithmetic number, because the mean of its divisors is an integer number (2540608).

Almost surely, 2^13065972 is an apocalyptic number.

13065972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13065972 is an abundant number, since it is smaller than the sum of its proper divisors (17421324).

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

13065972 is a wasteful number, since it uses less digits than its factorization.

13065972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088838 (or 1088836 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 13065972 is about 3614.6883683106. The cubic root of 13065972 is about 235.5305471980.

The spelling of 13065972 in words is "thirteen million, sixty-five thousand, nine hundred seventy-two".