126645612 has 12 divisors (see below), whose sum is σ = 295506456. Its totient is φ = 42215200.

The previous prime is 126645601. The next prime is 126645637. The reversal of 126645612 is 216546621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×126645612² = 32078222077709088, which contains 22 as substring.

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, 5276889 + ... + 5276912.

It is an arithmetic number, because the mean of its divisors is an integer number (24625538).

Almost surely, 2^126645612 is an apocalyptic number.

126645612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126645612 is an abundant number, since it is smaller than the sum of its proper divisors (168860844).

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

126645612 is a wasteful number, since it uses less digits than its factorization.

126645612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10553808 (or 10553806 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 126645612 is about 11253.6932604368. The cubic root of 126645612 is about 502.1845905604.

The spelling of 126645612 in words is "one hundred twenty-six million, six hundred forty-five thousand, six hundred twelve".