1022138473 has 2 divisors, whose sum is σ = 1022138474. Its totient is φ = 1022138472.

The previous prime is 1022138401. The next prime is 1022138519. The reversal of 1022138473 is 3748312201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608707584 + 413430889 = 24672^2 + 20333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022138473 - 2²⁹ = 485267561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022132473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511069236 + 511069237.

It is an arithmetic number, because the mean of its divisors is an integer number (511069237).

Almost surely, 2^1022138473 is an apocalyptic number.

It is an amenable number.

1022138473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022138473 is an equidigital number, since it uses as much as digits as its factorization.

1022138473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1022138473 is about 31970.9004095912. The cubic root of 1022138473 is about 1007.3256941587.

The spelling of 1022138473 in words is "one billion, twenty-two million, one hundred thirty-eight thousand, four hundred seventy-three".