126136031 has 8 divisors (see below), whose sum is σ = 144521760. Its totient is φ = 107841888.

The previous prime is 126136027. The next prime is 126136033. The reversal of 126136031 is 130631621.

It is a happy number.

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

It is not a de Polignac number, because 126136031 - 2² = 126136027 is a prime.

It is a super-2 number, since 2×126136031² = 31820596632865922, 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 = 126135988 and 126136006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126136033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19916 + ... + 25473.

It is an arithmetic number, because the mean of its divisors is an integer number (18065220).

Almost surely, 2^126136031 is an apocalyptic number.

126136031 is a deficient number, since it is larger than the sum of its proper divisors (18385729).

126136031 is an equidigital number, since it uses as much as digits as its factorization.

126136031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45793.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 126136031 is about 11231.0298281146. The cubic root of 126136031 is about 501.5101423483.

Adding to 126136031 its reverse (130631621), we get a palindrome (256767652).

The spelling of 126136031 in words is "one hundred twenty-six million, one hundred thirty-six thousand, thirty-one".