451139 has 4 divisors (see below), whose sum is σ = 485856. Its totient is φ = 416424.

The previous prime is 451109. The next prime is 451159. The reversal of 451139 is 931154.

It is a happy number.

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 451139 - 2⁸ = 450883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451109) 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, 17339 + ... + 17364.

It is an arithmetic number, because the mean of its divisors is an integer number (121464).

2⁴⁵¹¹³⁹ is an apocalyptic number.

451139 is a deficient number, since it is larger than the sum of its proper divisors (34717).

451139 is a wasteful number, since it uses less digits than its factorization.

451139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34716.

The product of its digits is 540, while the sum is 23.

The square root of 451139 is about 671.6688172009. The cubic root of 451139 is about 76.6955425779.

The spelling of 451139 in words is "four hundred fifty-one thousand, one hundred thirty-nine".