13142197 has 2 divisors, whose sum is σ = 13142198. Its totient is φ = 13142196.

The previous prime is 13142189. The next prime is 13142231. The reversal of 13142197 is 79124131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6922161 + 6220036 = 2631^2 + 2494^2 .

It is a cyclic number.

It is not a de Polignac number, because 13142197 - 2³ = 13142189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13142147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571098 + 6571099.

It is an arithmetic number, because the mean of its divisors is an integer number (6571099).

Almost surely, 2^13142197 is an apocalyptic number.

It is an amenable number.

13142197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13142197 is an equidigital number, since it uses as much as digits as its factorization.

13142197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 13142197 is about 3625.2168211019. The cubic root of 13142197 is about 235.9876765087.

The spelling of 13142197 in words is "thirteen million, one hundred forty-two thousand, one hundred ninety-seven".