1323127605 has 32 divisors (see below), whose sum is σ = 2282797440. Its totient is φ = 652216320.

The previous prime is 1323127583. The next prime is 1323127609. The reversal of 1323127605 is 5067213231.

It is not a de Polignac number, because 1323127605 - 2⁶ = 1323127541 is a prime.

It is a super-2 number, since 2×1323127605² = 3501333318226072050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323127609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44932 + ... + 68301.

It is an arithmetic number, because the mean of its divisors is an integer number (71337420).

Almost surely, 2^1323127605 is an apocalyptic number.

1323127605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323127605 is a deficient number, since it is larger than the sum of its proper divisors (959669835).

1323127605 is a wasteful number, since it uses less digits than its factorization.

1323127605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113301.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1323127605 is about 36374.8210304876. The cubic root of 1323127605 is about 1097.8270063322.

The spelling of 1323127605 in words is "one billion, three hundred twenty-three million, one hundred twenty-seven thousand, six hundred five".