126015450 has 144 divisors (see below), whose sum is σ = 352664928. Its totient is φ = 29744000.

The previous prime is 126015443. The next prime is 126015473. The reversal of 126015450 is 54510621.

It is a super-3 number, since 3×126015450³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126015450.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 961885 + ... + 962015.

It is an arithmetic number, because the mean of its divisors is an integer number (2449062).

Almost surely, 2^126015450 is an apocalyptic number.

126015450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126015450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176332464).

126015450 is an abundant number, since it is smaller than the sum of its proper divisors (226649478).

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

126015450 is a wasteful number, since it uses less digits than its factorization.

126015450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 126015450 is about 11225.6603369245. The cubic root of 126015450 is about 501.3502835196.

The spelling of 126015450 in words is "one hundred twenty-six million, fifteen thousand, four hundred fifty".