1321683514 has 4 divisors (see below), whose sum is σ = 1982525274. Its totient is φ = 660841756.

The previous prime is 1321683511. The next prime is 1321683563. The reversal of 1321683514 is 4153861231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1022912289 + 298771225 = 31983^2 + 17285^2 .

It is a super-2 number, since 2×1321683514² = 3493694622358776392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1321683514.

It is not an unprimeable number, because it can be changed into a prime (1321683511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330420877 + ... + 330420880.

Almost surely, 2^1321683514 is an apocalyptic number.

1321683514 is a deficient number, since it is larger than the sum of its proper divisors (660841760).

1321683514 is an equidigital number, since it uses as much as digits as its factorization.

1321683514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660841759.

The product of its digits is 17280, while the sum is 34.

The square root of 1321683514 is about 36354.9654655317. The cubic root of 1321683514 is about 1097.4274633075.

The spelling of 1321683514 in words is "one billion, three hundred twenty-one million, six hundred eighty-three thousand, five hundred fourteen".