1838397053 has 2 divisors, whose sum is σ = 1838397054. Its totient is φ = 1838397052.

The previous prime is 1838397037. The next prime is 1838397101. The reversal of 1838397053 is 3507938381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1825169284 + 13227769 = 42722^2 + 3637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1838397053 - 2⁴ = 1838397037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1838396989 and 1838397007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1838397013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919198526 + 919198527.

It is an arithmetic number, because the mean of its divisors is an integer number (919198527).

Almost surely, 2^1838397053 is an apocalyptic number.

It is an amenable number.

1838397053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838397053 is an equidigital number, since it uses as much as digits as its factorization.

1838397053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 1838397053 is about 42876.5326606525. The cubic root of 1838397053 is about 1225.0291933623.

The spelling of 1838397053 in words is "one billion, eight hundred thirty-eight million, three hundred ninety-seven thousand, fifty-three".