106215543 has 48 divisors (see below), whose sum is σ = 186391296. Its totient is φ = 59175360.

The previous prime is 106215533. The next prime is 106215563. The reversal of 106215543 is 345512601.

106215543 is a `hidden beast` number, since 106 + 2 + 1 + 554 + 3 = 666.

It is not a de Polignac number, because 106215543 - 2⁸ = 106215287 is a prime.

It is a super-2 number, since 2×106215543² = 22563483149569698, 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 (106215523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68980 + ... + 70502.

It is an arithmetic number, because the mean of its divisors is an integer number (3883152).

Almost surely, 2^106215543 is an apocalyptic number.

106215543 is a deficient number, since it is larger than the sum of its proper divisors (80175753).

106215543 is an equidigital number, since it uses as much as digits as its factorization.

106215543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 106215543 is about 10306.0925185057. The cubic root of 106215543 is about 473.5829130233.

The spelling of 106215543 in words is "one hundred six million, two hundred fifteen thousand, five hundred forty-three".