138358351 has 2 divisors, whose sum is σ = 138358352. Its totient is φ = 138358350.

The previous prime is 138358349. The next prime is 138358373. The reversal of 138358351 is 153853831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138358351 - 2¹ = 138358349 is a prime.

Together with 138358349, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 138358351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138358751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69179175 + 69179176.

It is an arithmetic number, because the mean of its divisors is an integer number (69179176).

Almost surely, 2^138358351 is an apocalyptic number.

138358351 is a deficient number, since it is larger than the sum of its proper divisors (1).

138358351 is an equidigital number, since it uses as much as digits as its factorization.

138358351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 138358351 is about 11762.5826670846. The cubic root of 138358351 is about 517.2118410993.

The spelling of 138358351 in words is "one hundred thirty-eight million, three hundred fifty-eight thousand, three hundred fifty-one".