126120600 has 72 divisors (see below), whose sum is σ = 423561060. Its totient is φ = 33631680.

The previous prime is 126120559. The next prime is 126120601. The reversal of 126120600 is 6021621.

It is a happy number.

126120600 is a `hidden beast` number, since 1 + 2 + 61 + 2 + 0 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126120601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33234 + ... + 36833.

Almost surely, 2^126120600 is an apocalyptic number.

126120600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126120600 is an abundant number, since it is smaller than the sum of its proper divisors (297440460).

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

126120600 is a wasteful number, since it uses less digits than its factorization.

126120600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70089 (or 70077 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 126120600 is about 11230.3428264679. The cubic root of 126120600 is about 501.4896905695.

The spelling of 126120600 in words is "one hundred twenty-six million, one hundred twenty thousand, six hundred".