140501671 has 2 divisors, whose sum is σ = 140501672. Its totient is φ = 140501670.

The previous prime is 140501663. The next prime is 140501693. The reversal of 140501671 is 176105041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140501671 - 2³ = 140501663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140501071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70250835 + 70250836.

It is an arithmetic number, because the mean of its divisors is an integer number (70250836).

Almost surely, 2^140501671 is an apocalyptic number.

140501671 is a deficient number, since it is larger than the sum of its proper divisors (1).

140501671 is an equidigital number, since it uses as much as digits as its factorization.

140501671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 140501671 is about 11853.3400778009. The cubic root of 140501671 is about 519.8688907624.

The spelling of 140501671 in words is "one hundred forty million, five hundred one thousand, six hundred seventy-one".