198249213 has 8 divisors (see below), whose sum is σ = 275825088. Its totient is φ = 126419744.

The previous prime is 198249209. The next prime is 198249217. The reversal of 198249213 is 312942891.

It is an interprime number because it is at equal distance from previous prime (198249209) and next prime (198249217).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198249213 - 2² = 198249209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198249217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436520 + ... + 1436657.

It is an arithmetic number, because the mean of its divisors is an integer number (34478136).

Almost surely, 2^198249213 is an apocalyptic number.

It is an amenable number.

198249213 is a deficient number, since it is larger than the sum of its proper divisors (77575875).

198249213 is a wasteful number, since it uses less digits than its factorization.

198249213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873203.

The product of its digits is 31104, while the sum is 39.

The square root of 198249213 is about 14080.0998931116. The cubic root of 198249213 is about 583.0920998361.

The spelling of 198249213 in words is "one hundred ninety-eight million, two hundred forty-nine thousand, two hundred thirteen".