106561131 has 8 divisors (see below), whose sum is σ = 144082944. Its totient is φ = 70040040.

The previous prime is 106561129. The next prime is 106561141. The reversal of 106561131 is 131165601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 106561131 - 2¹ = 106561129 is a prime.

It is a super-2 number, since 2×106561131² = 22710549279998322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106561141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249931 + ... + 250356.

It is an arithmetic number, because the mean of its divisors is an integer number (18010368).

Almost surely, 2^106561131 is an apocalyptic number.

106561131 is a deficient number, since it is larger than the sum of its proper divisors (37521813).

106561131 is an equidigital number, since it uses as much as digits as its factorization.

106561131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500361.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 106561131 is about 10322.8451020056. The cubic root of 106561131 is about 474.0959810262.

The spelling of 106561131 in words is "one hundred six million, five hundred sixty-one thousand, one hundred thirty-one".