198962013 has 4 divisors (see below), whose sum is σ = 265282688. Its totient is φ = 132641340.

The previous prime is 198962009. The next prime is 198962047. The reversal of 198962013 is 310269891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310269891 = 3 ⋅103423297.

It is not a de Polignac number, because 198962013 - 2² = 198962009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198963013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33160333 + ... + 33160338.

It is an arithmetic number, because the mean of its divisors is an integer number (66320672).

Almost surely, 2^198962013 is an apocalyptic number.

It is an amenable number.

198962013 is a deficient number, since it is larger than the sum of its proper divisors (66320675).

198962013 is an equidigital number, since it uses as much as digits as its factorization.

198962013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66320674.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 198962013 is about 14105.3895018890. The cubic root of 198962013 is about 583.7900948973.

The spelling of 198962013 in words is "one hundred ninety-eight million, nine hundred sixty-two thousand, thirteen".