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BaseRepresentation
bin110010001001…
…010010110101
3220201211220211
4302021102311
511331122034
61145425421
7216506254
oct62112265
926654824
1013145269
117469265
12449b271
132953387
141a6279b
151249d64
hexc894b5

13145269 has 2 divisors, whose sum is σ = 13145270. Its totient is φ = 13145268.

The previous prime is 13145263. The next prime is 13145273. The reversal of 13145269 is 96254131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10804369 + 2340900 = 3287^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 13145269 - 213 = 13137077 is a prime.

It is a super-2 number, since 2×131452692 = 345596194164722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13145269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13145263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572634 + 6572635.

It is an arithmetic number, because the mean of its divisors is an integer number (6572635).

Almost surely, 213145269 is an apocalyptic number.

It is an amenable number.

13145269 is a deficient number, since it is larger than the sum of its proper divisors (1).

13145269 is an equidigital number, since it uses as much as digits as its factorization.

13145269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 13145269 is about 3625.6404951401. The cubic root of 13145269 is about 236.0060625178.

The spelling of 13145269 in words is "thirteen million, one hundred forty-five thousand, two hundred sixty-nine".