67140377 has 2 divisors, whose sum is σ = 67140378. Its totient is φ = 67140376.

The previous prime is 67140341. The next prime is 67140383. The reversal of 67140377 is 77304176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67059721 + 80656 = 8189^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 67140377 - 2⁶ = 67140313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67140397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33570188 + 33570189.

It is an arithmetic number, because the mean of its divisors is an integer number (33570189).

Almost surely, 2^67140377 is an apocalyptic number.

It is an amenable number.

67140377 is a deficient number, since it is larger than the sum of its proper divisors (1).

67140377 is an equidigital number, since it uses as much as digits as its factorization.

67140377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 67140377 is about 8193.9231751341. The cubic root of 67140377 is about 406.4382678621.

The spelling of 67140377 in words is "sixty-seven million, one hundred forty thousand, three hundred seventy-seven".