138346354 has 4 divisors (see below), whose sum is σ = 207519534. Its totient is φ = 69173176.

The previous prime is 138346343. The next prime is 138346363. The reversal of 138346354 is 453643831.

138346354 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453643831 = 2179 ⋅208189.

It can be written as a sum of positive squares in only one way, i.e., 129436129 + 8910225 = 11377^2 + 2985^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34586587 + ... + 34586590.

Almost surely, 2^138346354 is an apocalyptic number.

138346354 is a deficient number, since it is larger than the sum of its proper divisors (69173180).

138346354 is an equidigital number, since it uses as much as digits as its factorization.

138346354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69173179.

The product of its digits is 103680, while the sum is 37.

The square root of 138346354 is about 11762.0726914945. The cubic root of 138346354 is about 517.1968915866.

The spelling of 138346354 in words is "one hundred thirty-eight million, three hundred forty-six thousand, three hundred fifty-four".