207149497 has 2 divisors, whose sum is σ = 207149498. Its totient is φ = 207149496.

The previous prime is 207149489. The next prime is 207149513. The reversal of 207149497 is 794941702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112593321 + 94556176 = 10611^2 + 9724^2 .

It is a cyclic number.

It is not a de Polignac number, because 207149497 - 2³ = 207149489 is a prime.

It is not a weakly prime, because it can be changed into another prime (207149197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103574748 + 103574749.

It is an arithmetic number, because the mean of its divisors is an integer number (103574749).

Almost surely, 2^207149497 is an apocalyptic number.

It is an amenable number.

207149497 is a deficient number, since it is larger than the sum of its proper divisors (1).

207149497 is an equidigital number, since it uses as much as digits as its factorization.

207149497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 207149497 is about 14392.6890121339. The cubic root of 207149497 is about 591.6905425883.

The spelling of 207149497 in words is "two hundred seven million, one hundred forty-nine thousand, four hundred ninety-seven".