106542531 has 12 divisors (see below), whose sum is σ = 154162008. Its totient is φ = 70905024.

The previous prime is 106542517. The next prime is 106542563. The reversal of 106542531 is 135245601.

106542531 is a `hidden beast` number, since 1 + 0 + 654 + 2 + 5 + 3 + 1 = 666.

It is not a de Polignac number, because 106542531 - 2⁹ = 106542019 is a prime.

It is a super-2 number, since 2×106542531² = 22702621823771922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106542495 and 106542504.

It is not an unprimeable number, because it can be changed into a prime (106544531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4645 + ... + 15318.

It is an arithmetic number, because the mean of its divisors is an integer number (12846834).

Almost surely, 2^106542531 is an apocalyptic number.

106542531 is a deficient number, since it is larger than the sum of its proper divisors (47619477).

106542531 is a wasteful number, since it uses less digits than its factorization.

106542531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20562 (or 20559 counting only the distinct ones).

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

The square root of 106542531 is about 10321.9441482697. The cubic root of 106542531 is about 474.0683953006.

The spelling of 106542531 in words is "one hundred six million, five hundred forty-two thousand, five hundred thirty-one".