67426145 has 8 divisors (see below), whose sum is σ = 81115560. Its totient is φ = 53804800.

The previous prime is 67426141. The next prime is 67426171. The reversal of 67426145 is 54162476.

It can be written as a sum of positive squares in 4 ways, for example, as 15124321 + 52301824 = 3889^2 + 7232^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67426145 - 2² = 67426141 is a prime.

It is a super-2 number, since 2×67426145² = 9092570059122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67426141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14810 + ... + 18819.

It is an arithmetic number, because the mean of its divisors is an integer number (10139445).

Almost surely, 2^67426145 is an apocalyptic number.

It is an amenable number.

67426145 is a deficient number, since it is larger than the sum of its proper divisors (13689415).

67426145 is a wasteful number, since it uses less digits than its factorization.

67426145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34035.

The product of its digits is 40320, while the sum is 35.

The square root of 67426145 is about 8211.3424602802. The cubic root of 67426145 is about 407.0140895460.

The spelling of 67426145 in words is "sixty-seven million, four hundred twenty-six thousand, one hundred forty-five".