139697196549121 has 16 divisors (see below), whose sum is σ = 144382666075648. Its totient is φ = 135060835060800.

The previous prime is 139697196549103. The next prime is 139697196549179. The reversal of 139697196549121 is 121945691796931.

It is a cyclic number.

It is not a de Polignac number, because 139697196549121 - 2¹⁷ = 139697196418049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139697196549101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228645 + ... + 16716658.

It is an arithmetic number, because the mean of its divisors is an integer number (9023916629728).

Almost surely, 2^{139697196549121} is an apocalyptic number.

It is an amenable number.

139697196549121 is a deficient number, since it is larger than the sum of its proper divisors (4685469526527).

139697196549121 is a wasteful number, since it uses less digits than its factorization.

139697196549121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16946752.

The product of its digits is 198404640, while the sum is 73.

The spelling of 139697196549121 in words is "one hundred thirty-nine trillion, six hundred ninety-seven billion, one hundred ninety-six million, five hundred forty-nine thousand, one hundred twenty-one".