126413231 has 4 divisors (see below), whose sum is σ = 144472272. Its totient is φ = 108354192.

The previous prime is 126413227. The next prime is 126413269. The reversal of 126413231 is 132314621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132314621 = 17 ⋅7783213.

It is a cyclic number.

It is not a de Polignac number, because 126413231 - 2² = 126413227 is a prime.

It is a super-2 number, since 2×126413231² = 31960609943718722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126413197 and 126413206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126413281) 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, 9029510 + ... + 9029523.

It is an arithmetic number, because the mean of its divisors is an integer number (36118068).

Almost surely, 2^126413231 is an apocalyptic number.

126413231 is a deficient number, since it is larger than the sum of its proper divisors (18059041).

126413231 is an equidigital number, since it uses as much as digits as its factorization.

126413231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18059040.

The product of its digits is 864, while the sum is 23.

The square root of 126413231 is about 11243.3638649650. The cubic root of 126413231 is about 501.8772510363.

Adding to 126413231 its reverse (132314621), we get a palindrome (258727852).

The spelling of 126413231 in words is "one hundred twenty-six million, four hundred thirteen thousand, two hundred thirty-one".