106656541 has 4 divisors (see below), whose sum is σ = 106811584. Its totient is φ = 106501500.

The previous prime is 106656509. The next prime is 106656547. The reversal of 106656541 is 145656601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 145656601 = 3413 ⋅42677.

It is a cyclic number.

It is not a de Polignac number, because 106656541 - 2⁵ = 106656509 is a prime.

It is a super-2 number, since 2×106656541² = 22751235476169362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106656497 and 106656506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106656547) 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, 76485 + ... + 77866.

It is an arithmetic number, because the mean of its divisors is an integer number (26702896).

Almost surely, 2^106656541 is an apocalyptic number.

It is an amenable number.

106656541 is a deficient number, since it is larger than the sum of its proper divisors (155043).

106656541 is an equidigital number, since it uses as much as digits as its factorization.

106656541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155042.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 106656541 is about 10327.4653715227. The cubic root of 106656541 is about 474.2374334921.

The spelling of 106656541 in words is "one hundred six million, six hundred fifty-six thousand, five hundred forty-one".