101498921 has 2 divisors, whose sum is σ = 101498922. Its totient is φ = 101498920.

The previous prime is 101498899. The next prime is 101498923. The reversal of 101498921 is 129894101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83521321 + 17977600 = 9139^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 101498921 - 2¹⁰ = 101497897 is a prime.

Together with 101498923, 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 (101498923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50749460 + 50749461.

It is an arithmetic number, because the mean of its divisors is an integer number (50749461).

Almost surely, 2^101498921 is an apocalyptic number.

It is an amenable number.

101498921 is a deficient number, since it is larger than the sum of its proper divisors (1).

101498921 is an equidigital number, since it uses as much as digits as its factorization.

101498921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 101498921 is about 10074.6672897918. The cubic root of 101498921 is about 466.4665166070.

The spelling of 101498921 in words is "one hundred one million, four hundred ninety-eight thousand, nine hundred twenty-one".