106623561 has 32 divisors (see below), whose sum is σ = 164643840. Its totient is φ = 60737600.

The previous prime is 106623553. The next prime is 106623563. The reversal of 106623561 is 165326601.

It is not a de Polignac number, because 106623561 - 2³ = 106623553 is a prime.

It is a super-2 number, since 2×106623561² = 22737167520641442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106623563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43591 + ... + 45971.

It is an arithmetic number, because the mean of its divisors is an integer number (5145120).

Almost surely, 2^106623561 is an apocalyptic number.

106623561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

106623561 is a deficient number, since it is larger than the sum of its proper divisors (58020279).

106623561 is a wasteful number, since it uses less digits than its factorization.

106623561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 106623561 is about 10325.8685348982. The cubic root of 106623561 is about 474.1885477174.

The spelling of 106623561 in words is "one hundred six million, six hundred twenty-three thousand, five hundred sixty-one".