245134397 has 2 divisors, whose sum is σ = 245134398. Its totient is φ = 245134396.

The previous prime is 245134363. The next prime is 245134427. The reversal of 245134397 is 793431542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240529081 + 4605316 = 15509^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 245134397 - 2²² = 240940093 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245134397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245134327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122567198 + 122567199.

It is an arithmetic number, because the mean of its divisors is an integer number (122567199).

Almost surely, 2^245134397 is an apocalyptic number.

It is an amenable number.

245134397 is a deficient number, since it is larger than the sum of its proper divisors (1).

245134397 is an equidigital number, since it uses as much as digits as its factorization.

245134397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 245134397 is about 15656.7684085829. The cubic root of 245134397 is about 625.8468707509.

The spelling of 245134397 in words is "two hundred forty-five million, one hundred thirty-four thousand, three hundred ninety-seven".