126345017 has 4 divisors (see below), whose sum is σ = 126727056. Its totient is φ = 125962980.

The previous prime is 126345013. The next prime is 126345029. The reversal of 126345017 is 710543621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126345017 - 2² = 126345013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126345013) 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, 190523 + ... + 191184.

It is an arithmetic number, because the mean of its divisors is an integer number (31681764).

Almost surely, 2^126345017 is an apocalyptic number.

It is an amenable number.

126345017 is a deficient number, since it is larger than the sum of its proper divisors (382039).

126345017 is an equidigital number, since it uses as much as digits as its factorization.

126345017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382038.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 126345017 is about 11240.3299328801. The cubic root of 126345017 is about 501.7869619259.

Adding to 126345017 its reverse (710543621), we get a palindrome (836888638).

The spelling of 126345017 in words is "one hundred twenty-six million, three hundred forty-five thousand, seventeen".