126144031 has 4 divisors (see below), whose sum is σ = 135847432. Its totient is φ = 116440632.

The previous prime is 126144019. The next prime is 126144037. The reversal of 126144031 is 130441621.

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 126144031 - 2¹⁵ = 126111263 is a prime.

It is a super-2 number, since 2×126144031² = 31824633113857922, 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 = 126143993 and 126144011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126144037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4851681 + ... + 4851706.

It is an arithmetic number, because the mean of its divisors is an integer number (33961858).

Almost surely, 2^126144031 is an apocalyptic number.

126144031 is a deficient number, since it is larger than the sum of its proper divisors (9703401).

126144031 is an equidigital number, since it uses as much as digits as its factorization.

126144031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703400.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 126144031 is about 11231.3859785870. The cubic root of 126144031 is about 501.5207446488.

Adding to 126144031 its reverse (130441621), we get a palindrome (256585652).

The spelling of 126144031 in words is "one hundred twenty-six million, one hundred forty-four thousand, thirty-one".