98109031 has 2 divisors, whose sum is σ = 98109032. Its totient is φ = 98109030.

The previous prime is 98108987. The next prime is 98109083. The reversal of 98109031 is 13090189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98109031 - 2⁹ = 98108519 is a prime.

It is a super-2 number, since 2×98109031² = 19250763927517922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98108984 and 98109002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98109131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49054515 + 49054516.

It is an arithmetic number, because the mean of its divisors is an integer number (49054516).

Almost surely, 2^98109031 is an apocalyptic number.

98109031 is a deficient number, since it is larger than the sum of its proper divisors (1).

98109031 is an equidigital number, since it uses as much as digits as its factorization.

98109031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 98109031 is about 9905.0003028773. Note that the first 3 decimals coincide. The cubic root of 98109031 is about 461.2145455914.

The spelling of 98109031 in words is "ninety-eight million, one hundred nine thousand, thirty-one".