106591951 has 2 divisors, whose sum is σ = 106591952. Its totient is φ = 106591950.

The previous prime is 106591939. The next prime is 106591967. The reversal of 106591951 is 159195601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106591951 - 2¹³ = 106583759 is a prime.

It is a super-2 number, since 2×106591951² = 22723688035972802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106591951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106691951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53295975 + 53295976.

It is an arithmetic number, because the mean of its divisors is an integer number (53295976).

Almost surely, 2^106591951 is an apocalyptic number.

106591951 is a deficient number, since it is larger than the sum of its proper divisors (1).

106591951 is an equidigital number, since it uses as much as digits as its factorization.

106591951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 37.

The square root of 106591951 is about 10324.3377995879. The cubic root of 106591951 is about 474.1416832116.

The spelling of 106591951 in words is "one hundred six million, five hundred ninety-one thousand, nine hundred fifty-one".