106551091 has 2 divisors, whose sum is σ = 106551092. Its totient is φ = 106551090.

The previous prime is 106551073. The next prime is 106551101. The reversal of 106551091 is 190155601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106551091 - 2⁵ = 106551059 is a prime.

It is a super-2 number, since 2×106551091² = 22706269986580562, which contains 22 as substring.

It is equal to p_6116572 and since 106551091 and 6116572 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (106501091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53275545 + 53275546.

It is an arithmetic number, because the mean of its divisors is an integer number (53275546).

Almost surely, 2^106551091 is an apocalyptic number.

106551091 is a deficient number, since it is larger than the sum of its proper divisors (1).

106551091 is an equidigital number, since it uses as much as digits as its factorization.

106551091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 106551091 is about 10322.3587905091. The cubic root of 106551091 is about 474.0810910656.

It can be divided in two parts, 1065510 and 91, that added together give a palindrome (1065601).

The spelling of 106551091 in words is "one hundred six million, five hundred fifty-one thousand, ninety-one".