1392225833 has 2 divisors, whose sum is σ = 1392225834. Its totient is φ = 1392225832.

The previous prime is 1392225827. The next prime is 1392225847. The reversal of 1392225833 is 3385222931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1324377664 + 67848169 = 36392^2 + 8237^2 .

It is an emirp because it is prime and its reverse (3385222931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1392225833 - 2¹² = 1392221737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1392225883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696112916 + 696112917.

It is an arithmetic number, because the mean of its divisors is an integer number (696112917).

Almost surely, 2^1392225833 is an apocalyptic number.

It is an amenable number.

1392225833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392225833 is an equidigital number, since it uses as much as digits as its factorization.

1392225833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 1392225833 is about 37312.5425694900. The cubic root of 1392225833 is about 1116.6144129505.

The spelling of 1392225833 in words is "one billion, three hundred ninety-two million, two hundred twenty-five thousand, eight hundred thirty-three".