126513193 has 2 divisors, whose sum is σ = 126513194. Its totient is φ = 126513192.

The previous prime is 126513151. The next prime is 126513199. The reversal of 126513193 is 391315621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125148969 + 1364224 = 11187^2 + 1168^2 .

It is a cyclic number.

It is not a de Polignac number, because 126513193 - 2²¹ = 124416041 is a prime.

It is not a weakly prime, because it can be changed into another prime (126513199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63256596 + 63256597.

It is an arithmetic number, because the mean of its divisors is an integer number (63256597).

Almost surely, 2^126513193 is an apocalyptic number.

It is an amenable number.

126513193 is a deficient number, since it is larger than the sum of its proper divisors (1).

126513193 is an equidigital number, since it uses as much as digits as its factorization.

126513193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 31.

The square root of 126513193 is about 11247.8083642992. The cubic root of 126513193 is about 502.0095036375.

The spelling of 126513193 in words is "one hundred twenty-six million, five hundred thirteen thousand, one hundred ninety-three".