98993131 has 2 divisors, whose sum is σ = 98993132. Its totient is φ = 98993130.

The previous prime is 98993107. The next prime is 98993143. The reversal of 98993131 is 13139989.

It is a strong prime.

It is an emirp because it is prime and its reverse (13139989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98993131 - 2¹⁵ = 98960363 is a prime.

It is a super-2 number, since 2×98993131² = 19599279970366322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98993101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49496565 + 49496566.

It is an arithmetic number, because the mean of its divisors is an integer number (49496566).

Almost surely, 2^98993131 is an apocalyptic number.

98993131 is a deficient number, since it is larger than the sum of its proper divisors (1).

98993131 is an equidigital number, since it uses as much as digits as its factorization.

98993131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 43.

The square root of 98993131 is about 9949.5291848409. The cubic root of 98993131 is about 462.5958015326.

The spelling of 98993131 in words is "ninety-eight million, nine hundred ninety-three thousand, one hundred thirty-one".