601245209 has 2 divisors, whose sum is σ = 601245210. Its totient is φ = 601245208.

The previous prime is 601245191. The next prime is 601245251. The reversal of 601245209 is 902542106.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 432764809 + 168480400 = 20803^2 + 12980^2 .

It is a cyclic number.

It is not a de Polignac number, because 601245209 - 2⁸ = 601244953 is a prime.

It is a super-2 number, since 2×601245209² = 722991602690907362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (601245289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300622604 + 300622605.

It is an arithmetic number, because the mean of its divisors is an integer number (300622605).

Almost surely, 2^601245209 is an apocalyptic number.

It is an amenable number.

601245209 is a deficient number, since it is larger than the sum of its proper divisors (1).

601245209 is an equidigital number, since it uses as much as digits as its factorization.

601245209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 601245209 is about 24520.3019761177. The cubic root of 601245209 is about 844.0157343225.

The spelling of 601245209 in words is "six hundred one million, two hundred forty-five thousand, two hundred nine".