198152831 has 2 divisors, whose sum is σ = 198152832. Its totient is φ = 198152830.

The previous prime is 198152807. The next prime is 198152869. The reversal of 198152831 is 138251891.

It is an a-pointer prime, because the next prime (198152869) can be obtained adding 198152831 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198152831 - 2²⁶ = 131043967 is a prime.

It is a super-2 number, since 2×198152831² = 78529088866629122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198152891) 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 as a sum of consecutive naturals, namely, 99076415 + 99076416.

It is an arithmetic number, because the mean of its divisors is an integer number (99076416).

Almost surely, 2^198152831 is an apocalyptic number.

198152831 is a deficient number, since it is larger than the sum of its proper divisors (1).

198152831 is an equidigital number, since it uses as much as digits as its factorization.

198152831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 38.

The square root of 198152831 is about 14076.6768450512. The cubic root of 198152831 is about 582.9975913606.

The spelling of 198152831 in words is "one hundred ninety-eight million, one hundred fifty-two thousand, eight hundred thirty-one".