106238549 has 2 divisors, whose sum is σ = 106238550. Its totient is φ = 106238548.

The previous prime is 106238479. The next prime is 106238551. The reversal of 106238549 is 945832601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92025649 + 14212900 = 9593^2 + 3770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106238549 is a prime.

It is a super-2 number, since 2×106238549² = 22573258587250802, which contains 22 as substring.

Together with 106238551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106238569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53119274 + 53119275.

It is an arithmetic number, because the mean of its divisors is an integer number (53119275).

Almost surely, 2^106238549 is an apocalyptic number.

It is an amenable number.

106238549 is a deficient number, since it is larger than the sum of its proper divisors (1).

106238549 is an equidigital number, since it uses as much as digits as its factorization.

106238549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 106238549 is about 10307.2085939890. The cubic root of 106238549 is about 473.6171028152.

The spelling of 106238549 in words is "one hundred six million, two hundred thirty-eight thousand, five hundred forty-nine".