138000451 has 4 divisors (see below), whose sum is σ = 138993400. Its totient is φ = 137007504.

The previous prime is 138000433. The next prime is 138000461. The reversal of 138000451 is 154000831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138000451 - 2⁵ = 138000419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138000461) 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, 496266 + ... + 496543.

It is an arithmetic number, because the mean of its divisors is an integer number (34748350).

Almost surely, 2^138000451 is an apocalyptic number.

138000451 is a deficient number, since it is larger than the sum of its proper divisors (992949).

138000451 is an equidigital number, since it uses as much as digits as its factorization.

138000451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992948.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 138000451 is about 11747.3593202898. The cubic root of 138000451 is about 516.7654881850.

The spelling of 138000451 in words is "one hundred thirty-eight million, four hundred fifty-one", and thus it is an aban number.