126515140 has 12 divisors (see below), whose sum is σ = 265681836. Its totient is φ = 50606048.

The previous prime is 126515107. The next prime is 126515141. The reversal of 126515140 is 41515621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89718784 + 36796356 = 9472^2 + 6066^2 .

It is not an unprimeable number, because it can be changed into a prime (126515141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3162859 + ... + 3162898.

It is an arithmetic number, because the mean of its divisors is an integer number (22140153).

Almost surely, 2^126515140 is an apocalyptic number.

126515140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126515140 is an abundant number, since it is smaller than the sum of its proper divisors (139166696).

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

126515140 is a wasteful number, since it uses less digits than its factorization.

126515140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325766 (or 6325764 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 126515140 is about 11247.8949141606. The cubic root of 126515140 is about 502.0120788827.

The spelling of 126515140 in words is "one hundred twenty-six million, five hundred fifteen thousand, one hundred forty".