198152807 has 2 divisors, whose sum is σ = 198152808. Its totient is φ = 198152806.

The previous prime is 198152791. The next prime is 198152831. The reversal of 198152807 is 708251891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198152807 - 2⁴ = 198152791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198152897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99076403 + 99076404.

It is an arithmetic number, because the mean of its divisors is an integer number (99076404).

Almost surely, 2^198152807 is an apocalyptic number.

198152807 is a deficient number, since it is larger than the sum of its proper divisors (1).

198152807 is an equidigital number, since it uses as much as digits as its factorization.

198152807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 198152807 is about 14076.6759925772. The cubic root of 198152807 is about 582.9975678233.

It can be divided in two parts, 19815 and 2807, that added together give a palindrome (22622).

The spelling of 198152807 in words is "one hundred ninety-eight million, one hundred fifty-two thousand, eight hundred seven".