67141391 has 2 divisors, whose sum is σ = 67141392. Its totient is φ = 67141390.

The previous prime is 67141387. The next prime is 67141397. The reversal of 67141391 is 19314176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67141391 - 2² = 67141387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67141397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33570695 + 33570696.

It is an arithmetic number, because the mean of its divisors is an integer number (33570696).

Almost surely, 2^67141391 is an apocalyptic number.

67141391 is a deficient number, since it is larger than the sum of its proper divisors (1).

67141391 is an equidigital number, since it uses as much as digits as its factorization.

67141391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 67141391 is about 8193.9850500230. The cubic root of 67141391 is about 406.4403139549.

The spelling of 67141391 in words is "sixty-seven million, one hundred forty-one thousand, three hundred ninety-one".