139364895061 has 4 divisors (see below), whose sum is σ = 159274165792. Its totient is φ = 119455624332.

The previous prime is 139364895041. The next prime is 139364895067. The reversal of 139364895061 is 160598463931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 160598463931 = 62981 ⋅2549951.

It is a cyclic number.

It is not a de Polignac number, because 139364895061 - 2⁵ = 139364895029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139364894993 and 139364895011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139364895067) 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, 9954635355 + ... + 9954635368.

It is an arithmetic number, because the mean of its divisors is an integer number (39818541448).

Almost surely, 2^139364895061 is an apocalyptic number.

It is an amenable number.

139364895061 is a deficient number, since it is larger than the sum of its proper divisors (19909270731).

139364895061 is an equidigital number, since it uses as much as digits as its factorization.

139364895061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19909270730.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 139364895061 in words is "one hundred thirty-nine billion, three hundred sixty-four million, eight hundred ninety-five thousand, sixty-one".