198570413 has 2 divisors, whose sum is σ = 198570414. Its totient is φ = 198570412.

The previous prime is 198570409. The next prime is 198570451. The reversal of 198570413 is 314075891.

It is an a-pointer prime, because the next prime (198570451) can be obtained adding 198570413 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128981449 + 69588964 = 11357^2 + 8342^2 .

It is a cyclic number.

It is not a de Polignac number, because 198570413 - 2² = 198570409 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198570473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99285206 + 99285207.

It is an arithmetic number, because the mean of its divisors is an integer number (99285207).

Almost surely, 2^198570413 is an apocalyptic number.

It is an amenable number.

198570413 is a deficient number, since it is larger than the sum of its proper divisors (1).

198570413 is an equidigital number, since it uses as much as digits as its factorization.

198570413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 198570413 is about 14091.5014459070. The cubic root of 198570413 is about 583.4068352189.

The spelling of 198570413 in words is "one hundred ninety-eight million, five hundred seventy thousand, four hundred thirteen".