203182977349 has 4 divisors (see below), whose sum is σ = 221654157120. Its totient is φ = 184711797580.

The previous prime is 203182977323. The next prime is 203182977359. The reversal of 203182977349 is 943779281302.

It is a happy number.

203182977349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 203182977349 - 2²⁹ = 202646106437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203182977349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203182977359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9235589869 + ... + 9235589890.

It is an arithmetic number, because the mean of its divisors is an integer number (55413539280).

Almost surely, 2^203182977349 is an apocalyptic number.

It is an amenable number.

203182977349 is a deficient number, since it is larger than the sum of its proper divisors (18471179771).

203182977349 is a wasteful number, since it uses less digits than its factorization.

203182977349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18471179770.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 203182977349 in words is "two hundred three billion, one hundred eighty-two million, nine hundred seventy-seven thousand, three hundred forty-nine".