139506227597 has 8 divisors (see below), whose sum is σ = 155900529792. Its totient is φ = 123730578400.

The previous prime is 139506227587. The next prime is 139506227671. The reversal of 139506227597 is 795722605931.

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

It is not a de Polignac number, because 139506227597 - 2²⁴ = 139489450381 is a prime.

It is a super-4 number, since 4×139506227597⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139506227537) 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 7 ways as a sum of consecutive naturals, for example, 154662773 + ... + 154663674.

It is an arithmetic number, because the mean of its divisors is an integer number (19487566224).

Almost surely, 2^139506227597 is an apocalyptic number.

It is an amenable number.

139506227597 is a deficient number, since it is larger than the sum of its proper divisors (16394302195).

139506227597 is a wasteful number, since it uses less digits than its factorization.

139506227597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309326499.

The product of its (nonzero) digits is 7144200, while the sum is 56.

The spelling of 139506227597 in words is "one hundred thirty-nine billion, five hundred six million, two hundred twenty-seven thousand, five hundred ninety-seven".