140772168 has 40 divisors (see below), whose sum is σ = 394294230. Its totient is φ = 46923840.

The previous prime is 140772139. The next prime is 140772193. The reversal of 140772168 is 861277041.

It can be written as a sum of positive squares in only one way, i.e., 124947684 + 15824484 = 11178^2 + 3978^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 107973 + ... + 109268.

Almost surely, 2^140772168 is an apocalyptic number.

140772168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140772168 is an abundant number, since it is smaller than the sum of its proper divisors (253522062).

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

140772168 is a wasteful number, since it uses less digits than its factorization.

140772168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217259 (or 217246 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 140772168 is about 11864.7447507310. The cubic root of 140772168 is about 520.2022980147.

The spelling of 140772168 in words is "one hundred forty million, seven hundred seventy-two thousand, one hundred sixty-eight".