126260431 has 4 divisors (see below), whose sum is σ = 137738664. Its totient is φ = 114782200.

The previous prime is 126260429. The next prime is 126260441. The reversal of 126260431 is 134062621.

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 126260431 - 2¹ = 126260429 is a prime.

It is a super-2 number, since 2×126260431² = 31883392872611522, 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 = 126260396 and 126260405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126260441) 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, 5739100 + ... + 5739121.

It is an arithmetic number, because the mean of its divisors is an integer number (34434666).

Almost surely, 2^126260431 is an apocalyptic number.

126260431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126260431 is a deficient number, since it is larger than the sum of its proper divisors (11478233).

126260431 is a wasteful number, since it uses less digits than its factorization.

126260431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11478232.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 126260431 is about 11236.5666909426. The cubic root of 126260431 is about 501.6749574364.

The spelling of 126260431 in words is "one hundred twenty-six million, two hundred sixty thousand, four hundred thirty-one".