139207321951 has 8 divisors (see below), whose sum is σ = 139917601008. Its totient is φ = 138497520000.

The previous prime is 139207321933. The next prime is 139207321987. The reversal of 139207321951 is 159123702931.

139207321951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139207321951 - 2¹¹ = 139207319903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139207321898 and 139207321907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139207321931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473241 + ... + 708781.

It is an arithmetic number, because the mean of its divisors is an integer number (17489700126).

Almost surely, 2^139207321951 is an apocalyptic number.

139207321951 is a deficient number, since it is larger than the sum of its proper divisors (710279057).

139207321951 is a wasteful number, since it uses less digits than its factorization.

139207321951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238553.

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 139207321951 in words is "one hundred thirty-nine billion, two hundred seven million, three hundred twenty-one thousand, nine hundred fifty-one".