126215140 has 96 divisors (see below), whose sum is σ = 294174720. Its totient is φ = 45287424.

The previous prime is 126215107. The next prime is 126215143. The reversal of 126215140 is 41512621.

It is not an unprimeable number, because it can be changed into a prime (126215143) 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, 993757 + ... + 993883.

It is an arithmetic number, because the mean of its divisors is an integer number (3064320).

Almost surely, 2^126215140 is an apocalyptic number.

126215140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126215140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147087360).

126215140 is an abundant number, since it is smaller than the sum of its proper divisors (167959580).

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

126215140 is a wasteful number, since it uses less digits than its factorization.

126215140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 126215140 is about 11234.5511703850. The cubic root of 126215140 is about 501.6149648279.

Adding to 126215140 its reverse (41512621), we get a palindrome (167727761).

The spelling of 126215140 in words is "one hundred twenty-six million, two hundred fifteen thousand, one hundred forty".