140506671 has 16 divisors (see below), whose sum is σ = 194958720. Its totient is φ = 89937120.

The previous prime is 140506669. The next prime is 140506673. The reversal of 140506671 is 176605041.

It is an interprime number because it is at equal distance from previous prime (140506669) and next prime (140506673).

It is not a de Polignac number, because 140506671 - 2¹ = 140506669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140506673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (12184920).

Almost surely, 2^140506671 is an apocalyptic number.

140506671 is a deficient number, since it is larger than the sum of its proper divisors (54452049).

140506671 is a wasteful number, since it uses less digits than its factorization.

140506671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18566.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 140506671 is about 11853.5509869406. The cubic root of 140506671 is about 519.8750575066.

The spelling of 140506671 in words is "one hundred forty million, five hundred six thousand, six hundred seventy-one".