126143836 has 72 divisors (see below), whose sum is σ = 285645696. Its totient is φ = 48263040.

The previous prime is 126143833. The next prime is 126143851. The reversal of 126143836 is 638341621.

It is a happy number.

It is a super-3 number, since 3×126143836³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126143833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78190 + ... + 79786.

Almost surely, 2^126143836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126143836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142822848).

126143836 is an abundant number, since it is smaller than the sum of its proper divisors (159501860).

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

126143836 is a wasteful number, since it uses less digits than its factorization.

126143836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1650 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 126143836 is about 11231.3772975535. The cubic root of 126143836 is about 501.5204862231.

The spelling of 126143836 in words is "one hundred twenty-six million, one hundred forty-three thousand, eight hundred thirty-six".