126211340 has 24 divisors (see below), whose sum is σ = 265472592. Its totient is φ = 50402880.

The previous prime is 126211339. The next prime is 126211343. The reversal of 126211340 is 43112621.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (126211343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8447 + ... + 17993.

It is an arithmetic number, because the mean of its divisors is an integer number (11061358).

Almost surely, 2^126211340 is an apocalyptic number.

126211340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126211340 is an abundant number, since it is smaller than the sum of its proper divisors (139261252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126211340 is a wasteful number, since it uses less digits than its factorization.

126211340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217 (or 10215 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 126211340 is about 11234.3820479811. The cubic root of 126211340 is about 501.6099306827.

Adding to 126211340 its reverse (43112621), we get a palindrome (169323961).

The spelling of 126211340 in words is "one hundred twenty-six million, two hundred eleven thousand, three hundred forty".