198136274 has 16 divisors (see below), whose sum is σ = 343166208. Its totient is φ = 84039552.

The previous prime is 198136271. The next prime is 198136277. The reversal of 198136274 is 472631891.

It is an interprime number because it is at equal distance from previous prime (198136271) and next prime (198136277).

It is a super-3 number, since 3×198136274³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (198136271) 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, 71594 + ... + 74309.

It is an arithmetic number, because the mean of its divisors is an integer number (21447888).

Almost surely, 2^198136274 is an apocalyptic number.

198136274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

198136274 is a deficient number, since it is larger than the sum of its proper divisors (145029934).

198136274 is a wasteful number, since it uses less digits than its factorization.

198136274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146009.

The product of its digits is 72576, while the sum is 41.

The square root of 198136274 is about 14076.0887323148. The cubic root of 198136274 is about 582.9813531201.

The spelling of 198136274 in words is "one hundred ninety-eight million, one hundred thirty-six thousand, two hundred seventy-four".