1372731223 has 2 divisors, whose sum is σ = 1372731224. Its totient is φ = 1372731222.

The previous prime is 1372731203. The next prime is 1372731271. The reversal of 1372731223 is 3221372731.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3221372731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372731223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372731203) 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 as a sum of consecutive naturals, namely, 686365611 + 686365612.

It is an arithmetic number, because the mean of its divisors is an integer number (686365612).

Almost surely, 2^1372731223 is an apocalyptic number.

1372731223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372731223 is an equidigital number, since it uses as much as digits as its factorization.

1372731223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 1372731223 is about 37050.3876228036. The cubic root of 1372731223 is about 1111.3781067876.

The spelling of 1372731223 in words is "one billion, three hundred seventy-two million, seven hundred thirty-one thousand, two hundred twenty-three".