139853653 has 4 divisors (see below), whose sum is σ = 140223040. Its totient is φ = 139484268.

The previous prime is 139853647. The next prime is 139853657. The reversal of 139853653 is 356358931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139853653 - 2¹⁷ = 139722581 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 (139853657) 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 3 ways as a sum of consecutive naturals, for example, 184125 + ... + 184882.

It is an arithmetic number, because the mean of its divisors is an integer number (35055760).

Almost surely, 2^139853653 is an apocalyptic number.

It is an amenable number.

139853653 is a deficient number, since it is larger than the sum of its proper divisors (369387).

139853653 is an equidigital number, since it uses as much as digits as its factorization.

139853653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369386.

The product of its digits is 291600, while the sum is 43.

The square root of 139853653 is about 11825.9736597035. The cubic root of 139853653 is about 519.0684171199.

The spelling of 139853653 in words is "one hundred thirty-nine million, eight hundred fifty-three thousand, six hundred fifty-three".