140472671 has 4 divisors (see below), whose sum is σ = 141075792. Its totient is φ = 139869552.

The previous prime is 140472653. The next prime is 140472679. The reversal of 140472671 is 176274041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176274041 = 193 ⋅913337.

It is a cyclic number.

It is not a de Polignac number, because 140472671 - 2¹⁴ = 140456287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140472679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301211 + ... + 301676.

It is an arithmetic number, because the mean of its divisors is an integer number (35268948).

Almost surely, 2^140472671 is an apocalyptic number.

140472671 is a deficient number, since it is larger than the sum of its proper divisors (603121).

140472671 is an equidigital number, since it uses as much as digits as its factorization.

140472671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603120.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 140472671 is about 11852.1167307785. The cubic root of 140472671 is about 519.8331207602.

The spelling of 140472671 in words is "one hundred forty million, four hundred seventy-two thousand, six hundred seventy-one".