140321079 has 12 divisors (see below), whose sum is σ = 210193256. Its totient is φ = 93547224.

The previous prime is 140321021. The next prime is 140321081. The reversal of 140321079 is 970123041.

It is not a de Polignac number, because 140321079 - 2⁷ = 140320951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288484 + ... + 288969.

Almost surely, 2^140321079 is an apocalyptic number.

140321079 is a deficient number, since it is larger than the sum of its proper divisors (69872177).

140321079 is an frugal number, since it uses more digits than its factorization.

140321079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577468 (or 577456 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 140321079 is about 11845.7198599325. The cubic root of 140321079 is about 519.6460596860.

The spelling of 140321079 in words is "one hundred forty million, three hundred twenty-one thousand, seventy-nine".