101298149 has 2 divisors, whose sum is σ = 101298150. Its totient is φ = 101298148.

The previous prime is 101298089. The next prime is 101298151. The reversal of 101298149 is 941892101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73017025 + 28281124 = 8545^2 + 5318^2 .

It is an emirp because it is prime and its reverse (941892101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101298149 - 2²⁰ = 100249573 is a prime.

It is a super-2 number, since 2×101298149² = 20522629981652402, which contains 22 as substring.

Together with 101298151, 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 a congruent number.

It is not a weakly prime, because it can be changed into another prime (101298179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50649074 + 50649075.

It is an arithmetic number, because the mean of its divisors is an integer number (50649075).

Almost surely, 2^101298149 is an apocalyptic number.

It is an amenable number.

101298149 is a deficient number, since it is larger than the sum of its proper divisors (1).

101298149 is an equidigital number, since it uses as much as digits as its factorization.

101298149 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 101298149 is about 10064.6981574213. The cubic root of 101298149 is about 466.1587457344.

The spelling of 101298149 in words is "one hundred one million, two hundred ninety-eight thousand, one hundred forty-nine".