41278145 has 4 divisors (see below), whose sum is σ = 49533780. Its totient is φ = 33022512.

The previous prime is 41278121. The next prime is 41278157. The reversal of 41278145 is 54187214.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27962944 + 13315201 = 5288^2 + 3649^2 .

It is a cyclic number.

It is not a de Polignac number, because 41278145 - 2⁸ = 41277889 is a prime.

It is an alternating number because its digits alternate between even and odd.

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, 4127810 + ... + 4127819.

It is an arithmetic number, because the mean of its divisors is an integer number (12383445).

Almost surely, 2^41278145 is an apocalyptic number.

It is an amenable number.

41278145 is a deficient number, since it is larger than the sum of its proper divisors (8255635).

41278145 is an equidigital number, since it uses as much as digits as its factorization.

41278145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255634.

The product of its digits is 8960, while the sum is 32.

The square root of 41278145 is about 6424.8070009923. The cubic root of 41278145 is about 345.5997270133.

The spelling of 41278145 in words is "forty-one million, two hundred seventy-eight thousand, one hundred forty-five".