138119473 has 2 divisors, whose sum is σ = 138119474. Its totient is φ = 138119472.

The previous prime is 138119461. The next prime is 138119479. The reversal of 138119473 is 374911831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119946304 + 18173169 = 10952^2 + 4263^2 .

It is a cyclic number.

It is not a de Polignac number, because 138119473 - 2¹⁷ = 137988401 is a prime.

It is not a weakly prime, because it can be changed into another prime (138119479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69059736 + 69059737.

It is an arithmetic number, because the mean of its divisors is an integer number (69059737).

Almost surely, 2^138119473 is an apocalyptic number.

It is an amenable number.

138119473 is a deficient number, since it is larger than the sum of its proper divisors (1).

138119473 is an equidigital number, since it uses as much as digits as its factorization.

138119473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 138119473 is about 11752.4241329183. The cubic root of 138119473 is about 516.9140113416.

The spelling of 138119473 in words is "one hundred thirty-eight million, one hundred nineteen thousand, four hundred seventy-three".