126170145 has 12 divisors (see below), whose sum is σ = 218694996. Its totient is φ = 67290720.

The previous prime is 126170101. The next prime is 126170167. The reversal of 126170145 is 541071621.

It is a happy number.

126170145 is a `hidden beast` number, since 1 + 2 + 617 + 0 + 1 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46621584 + 79548561 = 6828^2 + 8919^2 .

It is not a de Polignac number, because 126170145 - 2⁷ = 126170017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401846 + ... + 1401935.

It is an arithmetic number, because the mean of its divisors is an integer number (18224583).

Almost surely, 2^126170145 is an apocalyptic number.

126170145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126170145 is a deficient number, since it is larger than the sum of its proper divisors (92524851).

126170145 is a wasteful number, since it uses less digits than its factorization.

126170145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803792 (or 2803789 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 126170145 is about 11232.5484641732. The cubic root of 126170145 is about 501.5553500888. Note that the first 3 decimals are identical.

The spelling of 126170145 in words is "one hundred twenty-six million, one hundred seventy thousand, one hundred forty-five".