139853039 has 4 divisors (see below), whose sum is σ = 140791800. Its totient is φ = 138914280.

The previous prime is 139853017. The next prime is 139853047. The reversal of 139853039 is 930358931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139853039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139852987 and 139853005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139853099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469157 + ... + 469454.

It is an arithmetic number, because the mean of its divisors is an integer number (35197950).

Almost surely, 2^139853039 is an apocalyptic number.

139853039 is a deficient number, since it is larger than the sum of its proper divisors (938761).

139853039 is an equidigital number, since it uses as much as digits as its factorization.

139853039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938760.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 139853039 is about 11825.9476998674. The cubic root of 139853039 is about 519.0676574962.

The spelling of 139853039 in words is "one hundred thirty-nine million, eight hundred fifty-three thousand, thirty-nine".