106047391 has 2 divisors, whose sum is σ = 106047392. Its totient is φ = 106047390.

The previous prime is 106047371. The next prime is 106047397. The reversal of 106047391 is 193740601.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106047391 - 2⁹ = 106046879 is a prime.

It is a super-2 number, since 2×106047391² = 22492098275813762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106047397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53023695 + 53023696.

It is an arithmetic number, because the mean of its divisors is an integer number (53023696).

Almost surely, 2^106047391 is an apocalyptic number.

106047391 is a deficient number, since it is larger than the sum of its proper divisors (1).

106047391 is an equidigital number, since it uses as much as digits as its factorization.

106047391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 106047391 is about 10297.9313942170. The cubic root of 106047391 is about 473.3328680923.

Adding to 106047391 its reverse (193740601), we get a palindrome (299787992).

The spelling of 106047391 in words is "one hundred six million, forty-seven thousand, three hundred ninety-one".