1375665222 has 8 divisors (see below), whose sum is σ = 2751330456. Its totient is φ = 458555072.

The previous prime is 1375665209. The next prime is 1375665223. The reversal of 1375665222 is 2225665731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1375665222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375665223) 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, 114638763 + ... + 114638774.

It is an arithmetic number, because the mean of its divisors is an integer number (343916307).

Almost surely, 2^1375665222 is an apocalyptic number.

1375665222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375665222 is a wasteful number, since it uses less digits than its factorization.

1375665222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229277542.

The product of its digits is 151200, while the sum is 39.

The square root of 1375665222 is about 37089.9612024602. The cubic root of 1375665222 is about 1112.1693424925.

The spelling of 1375665222 in words is "one billion, three hundred seventy-five million, six hundred sixty-five thousand, two hundred twenty-two".