106045591 has 4 divisors (see below), whose sum is σ = 106113592. Its totient is φ = 105977592.

The previous prime is 106045579. The next prime is 106045601. The reversal of 106045591 is 195540601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106045591 - 2¹¹ = 106043543 is a prime.

It is a super-2 number, since 2×106045591² = 22491334741078562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106045561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31605 + ... + 34798.

It is an arithmetic number, because the mean of its divisors is an integer number (26528398).

Almost surely, 2^106045591 is an apocalyptic number.

106045591 is a deficient number, since it is larger than the sum of its proper divisors (68001).

106045591 is an equidigital number, since it uses as much as digits as its factorization.

106045591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68000.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 106045591 is about 10297.8439976531. The cubic root of 106045591 is about 473.3301900318.

The spelling of 106045591 in words is "one hundred six million, forty-five thousand, five hundred ninety-one".