140481667 has 2 divisors, whose sum is σ = 140481668. Its totient is φ = 140481666.

The previous prime is 140481643. The next prime is 140481697. The reversal of 140481667 is 766184041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140481667 is a prime.

It is not a weakly prime, because it can be changed into another prime (140481697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70240833 + 70240834.

It is an arithmetic number, because the mean of its divisors is an integer number (70240834).

Almost surely, 2^140481667 is an apocalyptic number.

140481667 is a deficient number, since it is larger than the sum of its proper divisors (1).

140481667 is an equidigital number, since it uses as much as digits as its factorization.

140481667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 140481667 is about 11852.4962349709. The cubic root of 140481667 is about 519.8442173883.

The spelling of 140481667 in words is "one hundred forty million, four hundred eighty-one thousand, six hundred sixty-seven".