67401137 has 2 divisors, whose sum is σ = 67401138. Its totient is φ = 67401136.

The previous prime is 67401127. The next prime is 67401143. The reversal of 67401137 is 73110476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67387681 + 13456 = 8209^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 67401137 - 2¹² = 67397041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67401127) 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 as a sum of consecutive naturals, namely, 33700568 + 33700569.

It is an arithmetic number, because the mean of its divisors is an integer number (33700569).

Almost surely, 2^67401137 is an apocalyptic number.

It is an amenable number.

67401137 is a deficient number, since it is larger than the sum of its proper divisors (1).

67401137 is an equidigital number, since it uses as much as digits as its factorization.

67401137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 67401137 is about 8209.8195473469. The cubic root of 67401137 is about 406.9637635337.

The spelling of 67401137 in words is "sixty-seven million, four hundred one thousand, one hundred thirty-seven".