106111657 has 4 divisors (see below), whose sum is σ = 106158676. Its totient is φ = 106064640.

The previous prime is 106111639. The next prime is 106111661. The reversal of 106111657 is 756111601.

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

It can be written as a sum of positive squares in 2 ways, for example, as 61168041 + 44943616 = 7821^2 + 6704^2 .

It is a cyclic number.

It is not a de Polignac number, because 106111657 - 2⁷ = 106111529 is a prime.

It is a super-2 number, since 2×106111657² = 22519367502571298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106115657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19944 + ... + 24697.

It is an arithmetic number, because the mean of its divisors is an integer number (26539669).

Almost surely, 2^106111657 is an apocalyptic number.

It is an amenable number.

106111657 is a deficient number, since it is larger than the sum of its proper divisors (47019).

106111657 is an equidigital number, since it uses as much as digits as its factorization.

106111657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47018.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 106111657 is about 10301.0512570320. The cubic root of 106111657 is about 473.4284639295.

The spelling of 106111657 in words is "one hundred six million, one hundred eleven thousand, six hundred fifty-seven".