126153636 has 72 divisors (see below), whose sum is σ = 347225760. Its totient is φ = 35538048.

The previous prime is 126153631. The next prime is 126153647. The reversal of 126153636 is 636351621.

It is a junction number, because it is equal to n+sod(n) for n = 126153597 and 126153606.

It is not an unprimeable number, because it can be changed into a prime (126153631) 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, 41455 + ... + 44393.

It is an arithmetic number, because the mean of its divisors is an integer number (4822580).

Almost surely, 2^126153636 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 126153636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173612880).

126153636 is an abundant number, since it is smaller than the sum of its proper divisors (221072124).

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

126153636 is a wasteful number, since it uses less digits than its factorization.

126153636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033 (or 3024 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 126153636 is about 11231.8135668288. The cubic root of 126153636 is about 501.5334734437.

The spelling of 126153636 in words is "one hundred twenty-six million, one hundred fifty-three thousand, six hundred thirty-six".