198937534 has 8 divisors (see below), whose sum is σ = 311380560. Its totient is φ = 95144016.

The previous prime is 198937523. The next prime is 198937537. The reversal of 198937534 is 435739891.

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

It is a super-2 number, since 2×198937534² = 79152284868002312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198937537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2162319 + ... + 2162410.

It is an arithmetic number, because the mean of its divisors is an integer number (38922570).

Almost surely, 2^198937534 is an apocalyptic number.

198937534 is a deficient number, since it is larger than the sum of its proper divisors (112443026).

198937534 is a wasteful number, since it uses less digits than its factorization.

198937534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324754.

The product of its digits is 816480, while the sum is 49.

The square root of 198937534 is about 14104.5217572238. The cubic root of 198937534 is about 583.7661519954.

The spelling of 198937534 in words is "one hundred ninety-eight million, nine hundred thirty-seven thousand, five hundred thirty-four".