126732031 has 4 divisors (see below), whose sum is σ = 126781200. Its totient is φ = 126682864.

The previous prime is 126732029. The next prime is 126732043. The reversal of 126732031 is 130237621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126732031 - 2¹ = 126732029 is a prime.

It is a super-2 number, since 2×126732031² = 32122015362769922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126731987 and 126732005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126732091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20491 + ... + 25948.

It is an arithmetic number, because the mean of its divisors is an integer number (31695300).

Almost surely, 2^126732031 is an apocalyptic number.

126732031 is a deficient number, since it is larger than the sum of its proper divisors (49169).

126732031 is an equidigital number, since it uses as much as digits as its factorization.

126732031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49168.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 126732031 is about 11257.5321896053. The cubic root of 126732031 is about 502.2987896023.

Adding to 126732031 its reverse (130237621), we get a palindrome (256969652).

The spelling of 126732031 in words is "one hundred twenty-six million, seven hundred thirty-two thousand, thirty-one".