1321450166 has 8 divisors (see below), whose sum is σ = 2019574944. Its totient is φ = 648258520.

The previous prime is 1321450159. The next prime is 1321450181. The reversal of 1321450166 is 6610541231.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6233150 + ... + 6233361.

It is an arithmetic number, because the mean of its divisors is an integer number (252446868).

Almost surely, 2^1321450166 is an apocalyptic number.

1321450166 is a deficient number, since it is larger than the sum of its proper divisors (698124778).

1321450166 is a wasteful number, since it uses less digits than its factorization.

1321450166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12466566.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1321450166 is about 36351.7560236091. The cubic root of 1321450166 is about 1097.3628745783.

Adding to 1321450166 its reverse (6610541231), we get a palindrome (7931991397).

The spelling of 1321450166 in words is "one billion, three hundred twenty-one million, four hundred fifty thousand, one hundred sixty-six".