1397328105 has 16 divisors (see below), whose sum is σ = 2236593024. Its totient is φ = 744952320.

The previous prime is 1397328071. The next prime is 1397328133. The reversal of 1397328105 is 5018237931.

It is not a de Polignac number, because 1397328105 - 2¹⁰ = 1397327081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25177 + ... + 58553.

It is an arithmetic number, because the mean of its divisors is an integer number (139787064).

Almost surely, 2^1397328105 is an apocalyptic number.

1397328105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1397328105 is a deficient number, since it is larger than the sum of its proper divisors (839264919).

1397328105 is a wasteful number, since it uses less digits than its factorization.

1397328105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36176.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1397328105 is about 37380.8521170933. The cubic root of 1397328105 is about 1117.9768175765.

The spelling of 1397328105 in words is "one billion, three hundred ninety-seven million, three hundred twenty-eight thousand, one hundred five".