126531106 has 8 divisors (see below), whose sum is σ = 204396444. Its totient is φ = 58398960.

The previous prime is 126531101. The next prime is 126531113. The reversal of 126531106 is 601135621.

It can be written as a sum of positive squares in 2 ways, for example, as 118919025 + 7612081 = 10905^2 + 2759^2 .

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

It is not an unprimeable number, because it can be changed into a prime (126531101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2433265 + ... + 2433316.

Almost surely, 2^126531106 is an apocalyptic number.

126531106 is a deficient number, since it is larger than the sum of its proper divisors (77865338).

126531106 is a wasteful number, since it uses less digits than its factorization.

126531106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866596.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 126531106 is about 11248.6046245746. The cubic root of 126531106 is about 502.0331956906.

Adding to 126531106 its reverse (601135621), we get a palindrome (727666727).

The spelling of 126531106 in words is "one hundred twenty-six million, five hundred thirty-one thousand, one hundred six".