126015216 has 20 divisors (see below), whose sum is σ = 325539432. Its totient is φ = 42005056.

The previous prime is 126015167. The next prime is 126015257. The reversal of 126015216 is 612510621.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312611 + ... + 1312706.

Almost surely, 2^126015216 is an apocalyptic number.

126015216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126015216 is an abundant number, since it is smaller than the sum of its proper divisors (199524216).

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

126015216 is a wasteful number, since it uses less digits than its factorization.

126015216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625328 (or 2625322 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 126015216 is about 11225.6499143702. The cubic root of 126015216 is about 501.3499731978.

Adding to 126015216 its reverse (612510621), we get a palindrome (738525837).

The spelling of 126015216 in words is "one hundred twenty-six million, fifteen thousand, two hundred sixteen".