138311453 has 8 divisors (see below), whose sum is σ = 158150208. Its totient is φ = 118492704.

The previous prime is 138311441. The next prime is 138311483. The reversal of 138311453 is 354113831.

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

It is a cyclic number.

It is not a de Polignac number, because 138311453 - 2⁶ = 138311389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138311413) 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, 15350 + ... + 22632.

It is an arithmetic number, because the mean of its divisors is an integer number (19768776).

Almost surely, 2^138311453 is an apocalyptic number.

It is an amenable number.

138311453 is a deficient number, since it is larger than the sum of its proper divisors (19838755).

138311453 is an equidigital number, since it uses as much as digits as its factorization.

138311453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10003.

The product of its digits is 4320, while the sum is 29.

The square root of 138311453 is about 11760.5889733465. The cubic root of 138311453 is about 517.1533963870.

The spelling of 138311453 in words is "one hundred thirty-eight million, three hundred eleven thousand, four hundred fifty-three".