140471860 has 12 divisors (see below), whose sum is σ = 294990948. Its totient is φ = 56188736.

The previous prime is 140471843. The next prime is 140471873. The reversal of 140471860 is 68174041.

It can be written as a sum of positive squares in 2 ways, for example, as 26152996 + 114318864 = 5114^2 + 10692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3511777 + ... + 3511816.

It is an arithmetic number, because the mean of its divisors is an integer number (24582579).

Almost surely, 2^140471860 is an apocalyptic number.

140471860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140471860 is an abundant number, since it is smaller than the sum of its proper divisors (154519088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140471860 is a wasteful number, since it uses less digits than its factorization.

140471860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023602 (or 7023600 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 140471860 is about 11852.0825174313. The cubic root of 140471860 is about 519.8321203629.

The spelling of 140471860 in words is "one hundred forty million, four hundred seventy-one thousand, eight hundred sixty".