126513156 has 96 divisors (see below), whose sum is σ = 384104448. Its totient is φ = 31426560.

The previous prime is 126513151. The next prime is 126513193. The reversal of 126513156 is 651315621.

It is not an unprimeable number, because it can be changed into a prime (126513151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18276 + ... + 24228.

It is an arithmetic number, because the mean of its divisors is an integer number (4001088).

Almost surely, 2^126513156 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 126513156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192052224).

126513156 is an abundant number, since it is smaller than the sum of its proper divisors (257591292).

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

126513156 is a wasteful number, since it uses less digits than its factorization.

126513156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001 (or 5999 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 126513156 is about 11247.8067195343. The cubic root of 126513156 is about 502.0094546983.

Adding to 126513156 its reverse (651315621), we get a palindrome (777828777).

The spelling of 126513156 in words is "one hundred twenty-six million, five hundred thirteen thousand, one hundred fifty-six".