67072130 has 16 divisors (see below), whose sum is σ = 120828024. Its totient is φ = 26807040.

The previous prime is 67072121. The next prime is 67072139. The reversal of 67072130 is 3127076.

It is an interprime number because it is at equal distance from previous prime (67072121) and next prime (67072139).

It can be written as a sum of positive squares in 4 ways, for example, as 48762289 + 18309841 = 6983^2 + 4279^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67072130.

It is not an unprimeable number, because it can be changed into a prime (67072139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16940 + ... + 20520.

Almost surely, 2^67072130 is an apocalyptic number.

67072130 is a deficient number, since it is larger than the sum of its proper divisors (53755894).

67072130 is a wasteful number, since it uses less digits than its factorization.

67072130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5461.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 67072130 is about 8189.7576276713. The cubic root of 67072130 is about 406.3005087496.

The spelling of 67072130 in words is "sixty-seven million, seventy-two thousand, one hundred thirty".