1323129974 has 4 divisors (see below), whose sum is σ = 1984694964. Its totient is φ = 661564986.

The previous prime is 1323129967. The next prime is 1323129979. The reversal of 1323129974 is 4799213231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4799213231 = 73 ⋅65742647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323129979) 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 as a sum of consecutive naturals, namely, 330782492 + ... + 330782495.

It is an arithmetic number, because the mean of its divisors is an integer number (496173741).

Almost surely, 2^1323129974 is an apocalyptic number.

1323129974 is a deficient number, since it is larger than the sum of its proper divisors (661564990).

1323129974 is an equidigital number, since it uses as much as digits as its factorization.

1323129974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661564989.

The product of its digits is 81648, while the sum is 41.

The square root of 1323129974 is about 36374.8535942071. The cubic root of 1323129974 is about 1097.8276615349.

The spelling of 1323129974 in words is "one billion, three hundred twenty-three million, one hundred twenty-nine thousand, nine hundred seventy-four".