139436550933 has 4 divisors (see below), whose sum is σ = 185915401248. Its totient is φ = 92957700620.

The previous prime is 139436550887. The next prime is 139436550977. The reversal of 139436550933 is 339055634931.

It is a happy number.

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 139436550933 - 2⁸ = 139436550677 is a prime.

It is a super-2 number, since 2×139436550933² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139436150933) 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, 23239425153 + ... + 23239425158.

It is an arithmetic number, because the mean of its divisors is an integer number (46478850312).

Almost surely, 2^139436550933 is an apocalyptic number.

It is an amenable number.

139436550933 is a deficient number, since it is larger than the sum of its proper divisors (46478850315).

139436550933 is an equidigital number, since it uses as much as digits as its factorization.

139436550933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46478850314.

The product of its (nonzero) digits is 3936600, while the sum is 51.

It can be divided in two parts, 13943 and 6550933, that added together give a triangular number (6564876 = T₃₆₂₃).

The spelling of 139436550933 in words is "one hundred thirty-nine billion, four hundred thirty-six million, five hundred fifty thousand, nine hundred thirty-three".