1373215047 has 16 divisors (see below), whose sum is σ = 1920775680. Its totient is φ = 871455200.

The previous prime is 1373215043. The next prime is 1373215073. The reversal of 1373215047 is 7405123731.

It is a cyclic number.

It is not a de Polignac number, because 1373215047 - 2² = 1373215043 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1373214999 and 1373215017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373215043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104979 + ... + 117332.

It is an arithmetic number, because the mean of its divisors is an integer number (120048480).

Almost surely, 2^1373215047 is an apocalyptic number.

1373215047 is a deficient number, since it is larger than the sum of its proper divisors (547560633).

1373215047 is a wasteful number, since it uses less digits than its factorization.

1373215047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222414.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 1373215047 is about 37056.9163180101. The cubic root of 1373215047 is about 1111.5086611723.

Adding to 1373215047 its reverse (7405123731), we get a palindrome (8778338778).

The spelling of 1373215047 in words is "one billion, three hundred seventy-three million, two hundred fifteen thousand, forty-seven".