106620543 has 10 divisors (see below), whose sum is σ = 159272784. Its totient is φ = 71080308.

The previous prime is 106620539. The next prime is 106620551. The reversal of 106620543 is 345026601.

It is not a de Polignac number, because 106620543 - 2² = 106620539 is a prime.

It is a super-2 number, since 2×106620543² = 22735880379229698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106620523) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 658071 + ... + 658232.

Almost surely, 2^106620543 is an apocalyptic number.

106620543 is a deficient number, since it is larger than the sum of its proper divisors (52652241).

106620543 is an equidigital number, since it uses as much as digits as its factorization.

106620543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316315 (or 1316306 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 106620543 is about 10325.7223960360. The cubic root of 106620543 is about 474.1840736764.

It can be divided in two parts, 1066 and 20543, that added together give a square (21609 = 147²).

The spelling of 106620543 in words is "one hundred six million, six hundred twenty thousand, five hundred forty-three".