107197209 has 16 divisors (see below), whose sum is σ = 181498240. Its totient is φ = 61255440.

The previous prime is 107197171. The next prime is 107197219. The reversal of 107197209 is 902791701.

It is not a de Polignac number, because 107197209 - 2¹⁵ = 107164441 is a prime.

It is a super-2 number, since 2×107197209² = 22982483234779362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (107197219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283402 + ... + 283779.

It is an arithmetic number, because the mean of its divisors is an integer number (11343640).

Almost surely, 2^107197209 is an apocalyptic number.

It is an amenable number.

107197209 is a deficient number, since it is larger than the sum of its proper divisors (74301031).

107197209 is an equidigital number, since it uses as much as digits as its factorization.

107197209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567197 (or 567191 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 107197209 is about 10353.6085013873. The cubic root of 107197209 is about 475.0374249367.

The spelling of 107197209 in words is "one hundred seven million, one hundred ninety-seven thousand, two hundred nine".