126030645 has 48 divisors (see below), whose sum is σ = 237789552. Its totient is φ = 61378560.

The previous prime is 126030643. The next prime is 126030647. The reversal of 126030645 is 546030621.

126030645 is a `hidden beast` number, since 12 + 6 + 0 + 3 + 0 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (126030643) and next prime (126030647).

It can be written as a sum of positive squares in 8 ways, for example, as 5008644 + 121022001 = 2238^2 + 11001^2 .

It is not a de Polignac number, because 126030645 - 2¹ = 126030643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126030643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55635 + ... + 57855.

It is an arithmetic number, because the mean of its divisors is an integer number (4953949).

Almost surely, 2^126030645 is an apocalyptic number.

126030645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126030645 is a deficient number, since it is larger than the sum of its proper divisors (111758907).

126030645 is a wasteful number, since it uses less digits than its factorization.

126030645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342 (or 2339 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 126030645 is about 11226.3371141259. The cubic root of 126030645 is about 501.3704337244.

The spelling of 126030645 in words is "one hundred twenty-six million, thirty thousand, six hundred forty-five".