138453346 has 8 divisors (see below), whose sum is σ = 210309120. Its totient is φ = 68350308.

The previous prime is 138453317. The next prime is 138453349. The reversal of 138453346 is 643354831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (138453349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437986 + ... + 438301.

It is an arithmetic number, because the mean of its divisors is an integer number (26288640).

Almost surely, 2^138453346 is an apocalyptic number.

138453346 is a deficient number, since it is larger than the sum of its proper divisors (71855774).

138453346 is an equidigital number, since it uses as much as digits as its factorization.

138453346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876368.

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

The square root of 138453346 is about 11766.6199904646. The cubic root of 138453346 is about 517.3301842717.

The spelling of 138453346 in words is "one hundred thirty-eight million, four hundred fifty-three thousand, three hundred forty-six".