139106531297 has 8 divisors (see below), whose sum is σ = 143032516800. Its totient is φ = 135189301104.

The previous prime is 139106531287. The next prime is 139106531299. The reversal of 139106531297 is 792135601931.

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 139106531297 - 2¹² = 139106527201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139106531299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2156597 + ... + 2220162.

It is an arithmetic number, because the mean of its divisors is an integer number (17879064600).

Almost surely, 2^139106531297 is an apocalyptic number.

It is an amenable number.

139106531297 is a deficient number, since it is larger than the sum of its proper divisors (3925985503).

139106531297 is an equidigital number, since it uses as much as digits as its factorization.

139106531297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377655.

The product of its (nonzero) digits is 306180, while the sum is 47.

The spelling of 139106531297 in words is "one hundred thirty-nine billion, one hundred six million, five hundred thirty-one thousand, two hundred ninety-seven".