138343322 has 16 divisors (see below), whose sum is σ = 226542120. Its totient is φ = 62975232.

The previous prime is 138343279. The next prime is 138343327. The reversal of 138343322 is 223343831.

It can be written as a sum of positive squares in 4 ways, for example, as 125462401 + 12880921 = 11201^2 + 3589^2 .

It is not an unprimeable number, because it can be changed into a prime (138343327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34547 + ... + 38342.

Almost surely, 2^138343322 is an apocalyptic number.

138343322 is a deficient number, since it is larger than the sum of its proper divisors (88198798).

138343322 is a wasteful number, since it uses less digits than its factorization.

138343322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72977.

The product of its digits is 10368, while the sum is 29.

The square root of 138343322 is about 11761.9438019402. The cubic root of 138343322 is about 517.1931132616.

The spelling of 138343322 in words is "one hundred thirty-eight million, three hundred forty-three thousand, three hundred twenty-two".