149004775797 has 4 divisors (see below), whose sum is σ = 198673034400. Its totient is φ = 99336517196.

The previous prime is 149004775769. The next prime is 149004775817. The reversal of 149004775797 is 797577400941.

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.

It is a cyclic number.

It is not a de Polignac number, because 149004775797 - 2⁸ = 149004775541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149004775797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149004775397) 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, 24834129297 + ... + 24834129302.

It is an arithmetic number, because the mean of its divisors is an integer number (49668258600).

Almost surely, 2^149004775797 is an apocalyptic number.

It is an amenable number.

149004775797 is a deficient number, since it is larger than the sum of its proper divisors (49668258603).

149004775797 is an equidigital number, since it uses as much as digits as its factorization.

149004775797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49668258602.

The product of its (nonzero) digits is 15558480, while the sum is 60.

The spelling of 149004775797 in words is "one hundred forty-nine billion, four million, seven hundred seventy-five thousand, seven hundred ninety-seven".