148531157605 has 4 divisors (see below), whose sum is σ = 178237389132. Its totient is φ = 118824926080.

The previous prime is 148531157597. The next prime is 148531157611. The reversal of 148531157605 is 506751135841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87153077089 + 61378080516 = 295217^2 + 247746^2 .

It is not a de Polignac number, because 148531157605 - 2³ = 148531157597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 14853115756 + ... + 14853115765.

It is an arithmetic number, because the mean of its divisors is an integer number (44559347283).

Almost surely, 2^148531157605 is an apocalyptic number.

It is an amenable number.

148531157605 is a deficient number, since it is larger than the sum of its proper divisors (29706231527).

148531157605 is an equidigital number, since it uses as much as digits as its factorization.

148531157605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29706231526.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 148531157605 in words is "one hundred forty-eight billion, five hundred thirty-one million, one hundred fifty-seven thousand, six hundred five".