1390737223 has 2 divisors, whose sum is σ = 1390737224. Its totient is φ = 1390737222.

The previous prime is 1390737193. The next prime is 1390737233. The reversal of 1390737223 is 3227370931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1390737223 - 2²⁹ = 853866311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1390737233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695368611 + 695368612.

It is an arithmetic number, because the mean of its divisors is an integer number (695368612).

Almost surely, 2^1390737223 is an apocalyptic number.

1390737223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390737223 is an equidigital number, since it uses as much as digits as its factorization.

1390737223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 1390737223 is about 37292.5893844876. The cubic root of 1390737223 is about 1116.2162983822.

The spelling of 1390737223 in words is "one billion, three hundred ninety million, seven hundred thirty-seven thousand, two hundred twenty-three".