101498987 has 2 divisors, whose sum is σ = 101498988. Its totient is φ = 101498986.

The previous prime is 101498923. The next prime is 101498989. The reversal of 101498987 is 789894101.

It is a strong prime.

It is an emirp because it is prime and its reverse (789894101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101498987 - 2⁶ = 101498923 is a prime.

Together with 101498989, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (101498989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50749493 + 50749494.

It is an arithmetic number, because the mean of its divisors is an integer number (50749494).

Almost surely, 2^101498987 is an apocalyptic number.

101498987 is a deficient number, since it is larger than the sum of its proper divisors (1).

101498987 is an equidigital number, since it uses as much as digits as its factorization.

101498987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 101498987 is about 10074.6705653336. The cubic root of 101498987 is about 466.4666177141.

It can be divided in two parts, 1014 and 98987, that added together give a palindrome (100001).

The spelling of 101498987 in words is "one hundred one million, four hundred ninety-eight thousand, nine hundred eighty-seven".