126099072 has 256 divisors, whose sum is σ = 423014400. Its totient is φ = 36633600.

The previous prime is 126099049. The next prime is 126099097. The reversal of 126099072 is 270990621.

It is a super-2 number, since 2×126099072² = 31801951918522368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1178443 + ... + 1178549.

It is an arithmetic number, because the mean of its divisors is an integer number (1652400).

Almost surely, 2^126099072 is an apocalyptic number.

126099072 is a gapful number since it is divisible by the number (12) 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 126099072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211507200).

126099072 is an abundant number, since it is smaller than the sum of its proper divisors (296915328).

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

126099072 is a wasteful number, since it uses less digits than its factorization.

126099072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 126099072 is about 11229.3843108160. The cubic root of 126099072 is about 501.4611552248.

The spelling of 126099072 in words is "one hundred twenty-six million, ninety-nine thousand, seventy-two".