138982453 has 2 divisors, whose sum is σ = 138982454. Its totient is φ = 138982452.

The previous prime is 138982451. The next prime is 138982457. The reversal of 138982453 is 354289831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113358609 + 25623844 = 10647^2 + 5062^2 .

It is a cyclic number.

It is not a de Polignac number, because 138982453 - 2¹ = 138982451 is a prime.

It is a super-2 number, since 2×138982453² = 38632244483794418, which contains 22 as substring.

Together with 138982451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138982451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69491226 + 69491227.

It is an arithmetic number, because the mean of its divisors is an integer number (69491227).

Almost surely, 2^138982453 is an apocalyptic number.

It is an amenable number.

138982453 is a deficient number, since it is larger than the sum of its proper divisors (1).

138982453 is an equidigital number, since it uses as much as digits as its factorization.

138982453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 138982453 is about 11789.0819405075. The cubic root of 138982453 is about 517.9883484010.

The spelling of 138982453 in words is "one hundred thirty-eight million, nine hundred eighty-two thousand, four hundred fifty-three".