140421039 has 32 divisors (see below), whose sum is σ = 216034560. Its totient is φ = 80236800.

The previous prime is 140420993. The next prime is 140421053. The reversal of 140421039 is 930124041.

It is not a de Polignac number, because 140421039 - 2⁸ = 140420783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140422039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175789 + ... + 176585.

It is an arithmetic number, because the mean of its divisors is an integer number (6751080).

Almost surely, 2^140421039 is an apocalyptic number.

140421039 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

140421039 is a deficient number, since it is larger than the sum of its proper divisors (75613521).

140421039 is a wasteful number, since it uses less digits than its factorization.

140421039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 140421039 is about 11849.9383542700. The cubic root of 140421039 is about 519.7694231679.

The spelling of 140421039 in words is "one hundred forty million, four hundred twenty-one thousand, thirty-nine".