1321673150 has 48 divisors (see below), whose sum is σ = 2931669504. Its totient is φ = 433440480.

The previous prime is 1321673149. The next prime is 1321673191. The reversal of 1321673150 is 513761231.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 74042 + ... + 90141.

It is an arithmetic number, because the mean of its divisors is an integer number (61076448).

Almost surely, 2^1321673150 is an apocalyptic number.

1321673150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321673150 is an abundant number, since it is smaller than the sum of its proper divisors (1609996354).

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

1321673150 is a wasteful number, since it uses less digits than its factorization.

1321673150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164225 (or 164220 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1321673150 is about 36354.8229262639. The cubic root of 1321673150 is about 1097.4245948024.

The spelling of 1321673150 in words is "one billion, three hundred twenty-one million, six hundred seventy-three thousand, one hundred fifty".