1321676612 has 6 divisors (see below), whose sum is σ = 2312934078. Its totient is φ = 660838304.

The previous prime is 1321676591. The next prime is 1321676633. The reversal of 1321676612 is 2166761231.

It is an interprime number because it is at equal distance from previous prime (1321676591) and next prime (1321676633).

It can be written as a sum of positive squares in only one way, i.e., 1286226496 + 35450116 = 35864^2 + 5954^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165209573 + ... + 165209580.

It is an arithmetic number, because the mean of its divisors is an integer number (385489013).

Almost surely, 2^1321676612 is an apocalyptic number.

It is an amenable number.

1321676612 is a deficient number, since it is larger than the sum of its proper divisors (991257466).

1321676612 is a wasteful number, since it uses less digits than its factorization.

1321676612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330419157 (or 330419155 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 1321676612 is about 36354.8705402729. The cubic root of 1321676612 is about 1097.4255530021.

The spelling of 1321676612 in words is "one billion, three hundred twenty-one million, six hundred seventy-six thousand, six hundred twelve".