126035813 has 4 divisors (see below), whose sum is σ = 126175680. Its totient is φ = 125895948.

The previous prime is 126035771. The next prime is 126035839. The reversal of 126035813 is 318530621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318530621 = 1861 ⋅171161.

It is a cyclic number.

It is not a de Polignac number, because 126035813 - 2¹⁶ = 125970277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126035843) 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, 68573 + ... + 70386.

It is an arithmetic number, because the mean of its divisors is an integer number (31543920).

Almost surely, 2^126035813 is an apocalyptic number.

It is an amenable number.

126035813 is a deficient number, since it is larger than the sum of its proper divisors (139867).

126035813 is an equidigital number, since it uses as much as digits as its factorization.

126035813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139866.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 126035813 is about 11226.5672847937. The cubic root of 126035813 is about 501.3772866793.

It can be divided in two parts, 1260 and 35813, that added together give a palindrome (37073).

The spelling of 126035813 in words is "one hundred twenty-six million, thirty-five thousand, eight hundred thirteen".