140246671 has 2 divisors, whose sum is σ = 140246672. Its totient is φ = 140246670.

The previous prime is 140246669. The next prime is 140246683. The reversal of 140246671 is 176642041.

It is a weak prime.

It is an emirp because it is prime and its reverse (176642041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140246671 - 2¹ = 140246669 is a prime.

Together with 140246669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140246621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70123335 + 70123336.

It is an arithmetic number, because the mean of its divisors is an integer number (70123336).

Almost surely, 2^140246671 is an apocalyptic number.

140246671 is a deficient number, since it is larger than the sum of its proper divisors (1).

140246671 is an equidigital number, since it uses as much as digits as its factorization.

140246671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 140246671 is about 11842.5787310028. The cubic root of 140246671 is about 519.5541926129.

The spelling of 140246671 in words is "one hundred forty million, two hundred forty-six thousand, six hundred seventy-one".