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13142957 is a prime number
BaseRepresentation
bin110010001000…
…101110101101
3220201201202012
4302020232231
511331033312
61145411005
7216466442
oct62105655
926651665
1013142957
117467553
124499a65
1329522c9
141a619c9
151249322
hexc88bad

13142957 has 2 divisors, whose sum is σ = 13142958. Its totient is φ = 13142956.

The previous prime is 13142933. The next prime is 13142963. The reversal of 13142957 is 75924131.

13142957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 45796 = 3619^2 + 214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13142957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13142057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571478 + 6571479.

It is an arithmetic number, because the mean of its divisors is an integer number (6571479).

Almost surely, 213142957 is an apocalyptic number.

It is an amenable number.

13142957 is a deficient number, since it is larger than the sum of its proper divisors (1).

13142957 is an equidigital number, since it uses as much as digits as its factorization.

13142957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 13142957 is about 3625.3216409031. The cubic root of 13142957 is about 235.9922253974.

The spelling of 13142957 in words is "thirteen million, one hundred forty-two thousand, nine hundred fifty-seven".