1478227943 has 2 divisors, whose sum is σ = 1478227944. Its totient is φ = 1478227942.

The previous prime is 1478227931. The next prime is 1478227999. The reversal of 1478227943 is 3497228741.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1478227943 - 2¹² = 1478223847 is a prime.

It is a super-2 number, since 2×1478227943² = 4370315702932022498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478226943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739113971 + 739113972.

It is an arithmetic number, because the mean of its divisors is an integer number (739113972).

Almost surely, 2^1478227943 is an apocalyptic number.

1478227943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478227943 is an equidigital number, since it uses as much as digits as its factorization.

1478227943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The square root of 1478227943 is about 38447.7300110163. The cubic root of 1478227943 is about 1139.1488319151.

The spelling of 1478227943 in words is "one billion, four hundred seventy-eight million, two hundred twenty-seven thousand, nine hundred forty-three".