140070439 has 4 divisors (see below), whose sum is σ = 141078280. Its totient is φ = 139062600.

The previous prime is 140070409. The next prime is 140070449. The reversal of 140070439 is 934070041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140070439 - 2⁵ = 140070407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140070409) 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 3 ways as a sum of consecutive naturals, for example, 503712 + ... + 503989.

It is an arithmetic number, because the mean of its divisors is an integer number (35269570).

Almost surely, 2^140070439 is an apocalyptic number.

140070439 is a deficient number, since it is larger than the sum of its proper divisors (1007841).

140070439 is a wasteful number, since it uses less digits than its factorization.

140070439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007840.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 140070439 is about 11835.1357829135. The cubic root of 140070439 is about 519.3364798917.

The spelling of 140070439 in words is "one hundred forty million, seventy thousand, four hundred thirty-nine".