140728193 has 16 divisors (see below), whose sum is σ = 157489920. Its totient is φ = 124966656.

The previous prime is 140728183. The next prime is 140728241. The reversal of 140728193 is 391827041.

It is a cyclic number.

It is not a de Polignac number, because 140728193 - 2²⁴ = 123950977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140728103) 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, 93896 + ... + 95382.

It is an arithmetic number, because the mean of its divisors is an integer number (9843120).

Almost surely, 2^140728193 is an apocalyptic number.

It is an amenable number.

140728193 is a deficient number, since it is larger than the sum of its proper divisors (16761727).

140728193 is a wasteful number, since it uses less digits than its factorization.

140728193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 140728193 is about 11862.8914266295. The cubic root of 140728193 is about 520.1481247151.

The spelling of 140728193 in words is "one hundred forty million, seven hundred twenty-eight thousand, one hundred ninety-three".