140728845385154 has 32 divisors (see below), whose sum is σ = 229379213856240. Its totient is φ = 64366812905472.

The previous prime is 140728845385147. The next prime is 140728845385157. The reversal of 140728845385154 is 451583548827041.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4579270445929 + 136149574939225 = 2139923^2 + 11668315^2 .

It is not an unprimeable number, because it can be changed into a prime (140728845385157) 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, 14838752 + ... + 22397460.

Almost surely, 2^{140728845385154} is an apocalyptic number.

140728845385154 is a deficient number, since it is larger than the sum of its proper divisors (88650368471086).

140728845385154 is a wasteful number, since it uses less digits than its factorization.

140728845385154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7565174.

The product of its (nonzero) digits is 172032000, while the sum is 65.

The spelling of 140728845385154 in words is "one hundred forty trillion, seven hundred twenty-eight billion, eight hundred forty-five million, three hundred eighty-five thousand, one hundred fifty-four".