140478544 has 10 divisors (see below), whose sum is σ = 272177210. Its totient is φ = 70239264.

The previous prime is 140478539. The next prime is 140478551. The reversal of 140478544 is 445874041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 132526144 + 7952400 = 11512^2 + 2820^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4389939 + ... + 4389970.

It is an arithmetic number, because the mean of its divisors is an integer number (27217721).

Almost surely, 2^140478544 is an apocalyptic number.

It is an amenable number.

140478544 is a deficient number, since it is larger than the sum of its proper divisors (131698666).

140478544 is an equidigital number, since it uses as much as digits as its factorization.

140478544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8779917 (or 8779911 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 140478544 is about 11852.3644898391. The cubic root of 140478544 is about 519.8403651999.

The spelling of 140478544 in words is "one hundred forty million, four hundred seventy-eight thousand, five hundred forty-four".