148269640609 has 4 divisors (see below), whose sum is σ = 148273526016. Its totient is φ = 148265755204.

The previous prime is 148269640601. The next prime is 148269640613. The reversal of 148269640609 is 906046962841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 906046962841 = 43943 ⋅20618687.

It is a cyclic number.

It is not a de Polignac number, because 148269640609 - 2³ = 148269640601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148269640609.

It is not an unprimeable number, because it can be changed into a prime (148269640601) 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 3 ways as a sum of consecutive naturals, for example, 1884889 + ... + 1961974.

It is an arithmetic number, because the mean of its divisors is an integer number (37068381504).

Almost surely, 2^148269640609 is an apocalyptic number.

It is an amenable number.

148269640609 is a deficient number, since it is larger than the sum of its proper divisors (3885407).

148269640609 is an equidigital number, since it uses as much as digits as its factorization.

148269640609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885406.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 148269640609 in words is "one hundred forty-eight billion, two hundred sixty-nine million, six hundred forty thousand, six hundred nine".