39121297 has 2 divisors, whose sum is σ = 39121298. Its totient is φ = 39121296.

The previous prime is 39121279. The next prime is 39121331. The reversal of 39121297 is 79212193.

It is a happy number.

Together with previous prime (39121279) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (39121331) can be obtained adding 39121297 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38825361 + 295936 = 6231^2 + 544^2 .

It is an emirp because it is prime and its reverse (79212193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39121297 - 2⁷ = 39121169 is a prime.

It is not a weakly prime, because it can be changed into another prime (39121217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19560648 + 19560649.

It is an arithmetic number, because the mean of its divisors is an integer number (19560649).

Almost surely, 2^39121297 is an apocalyptic number.

It is an amenable number.

39121297 is a deficient number, since it is larger than the sum of its proper divisors (1).

39121297 is an equidigital number, since it uses as much as digits as its factorization.

39121297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 34.

The square root of 39121297 is about 6254.7019913022. The cubic root of 39121297 is about 339.4723563174.

The spelling of 39121297 in words is "thirty-nine million, one hundred twenty-one thousand, two hundred ninety-seven".