149908595593 has 8 divisors (see below), whose sum is σ = 156118653000. Its totient is φ = 143767924608.

The previous prime is 149908595581. The next prime is 149908595623. The reversal of 149908595593 is 395595809941.

It can be written as a sum of positive squares in 4 ways, for example, as 11879256064 + 138029339529 = 108992^2 + 371523^2 .

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 149908595593 - 2³⁷ = 12469642121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149908595393) 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, 17342196 + ... + 17350837.

It is an arithmetic number, because the mean of its divisors is an integer number (19514831625).

Almost surely, 2^149908595593 is an apocalyptic number.

It is an amenable number.

149908595593 is a deficient number, since it is larger than the sum of its proper divisors (6210057407).

149908595593 is a wasteful number, since it uses less digits than its factorization.

149908595593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34693211.

The product of its (nonzero) digits is 78732000, while the sum is 67.

The spelling of 149908595593 in words is "one hundred forty-nine billion, nine hundred eight million, five hundred ninety-five thousand, five hundred ninety-three".