197793513 has 12 divisors (see below), whose sum is σ = 285941760. Its totient is φ = 131751576.

The previous prime is 197793503. The next prime is 197793517. The reversal of 197793513 is 315397791.

It is not a de Polignac number, because 197793513 - 2⁸ = 197793257 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (197793517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2920 + ... + 20102.

It is an arithmetic number, because the mean of its divisors is an integer number (23828480).

Almost surely, 2^197793513 is an apocalyptic number.

It is an amenable number.

197793513 is a deficient number, since it is larger than the sum of its proper divisors (88148247).

197793513 is a wasteful number, since it uses less digits than its factorization.

197793513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18468 (or 18465 counting only the distinct ones).

The product of its digits is 178605, while the sum is 45.

The square root of 197793513 is about 14063.9081694954. The cubic root of 197793513 is about 582.6449876398.

The spelling of 197793513 in words is "one hundred ninety-seven million, seven hundred ninety-three thousand, five hundred thirteen".