198465537 has 8 divisors (see below), whose sum is σ = 270251136. Its totient is φ = 129495152.

The previous prime is 198465529. The next prime is 198465541. The reversal of 198465537 is 735564891.

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

It is not a de Polignac number, because 198465537 - 2³ = 198465529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198465037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703638 + ... + 703919.

It is an arithmetic number, because the mean of its divisors is an integer number (33781392).

Almost surely, 2^198465537 is an apocalyptic number.

It is an amenable number.

198465537 is a deficient number, since it is larger than the sum of its proper divisors (71785599).

198465537 is a wasteful number, since it uses less digits than its factorization.

198465537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407607.

The product of its digits is 907200, while the sum is 48.

The square root of 198465537 is about 14087.7797044105. The cubic root of 198465537 is about 583.3041073430.

The spelling of 198465537 in words is "one hundred ninety-eight million, four hundred sixty-five thousand, five hundred thirty-seven".