1396013681 has 4 divisors (see below), whose sum is σ = 1456709952. Its totient is φ = 1335317412.

The previous prime is 1396013677. The next prime is 1396013713. The reversal of 1396013681 is 1863106931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1396013681 - 2² = 1396013677 is a prime.

It is a super-2 number, since 2×1396013681² = 3897708395078339522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1396013651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30348101 + ... + 30348146.

It is an arithmetic number, because the mean of its divisors is an integer number (364177488).

Almost surely, 2^1396013681 is an apocalyptic number.

It is an amenable number.

1396013681 is a deficient number, since it is larger than the sum of its proper divisors (60696271).

1396013681 is an equidigital number, since it uses as much as digits as its factorization.

1396013681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60696270.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1396013681 is about 37363.2664658753. The cubic root of 1396013681 is about 1117.6261586854.

The spelling of 1396013681 in words is "one billion, three hundred ninety-six million, thirteen thousand, six hundred eighty-one".