455138 has 4 divisors (see below), whose sum is σ = 682710. Its totient is φ = 227568.

The previous prime is 455123. The next prime is 455149. The reversal of 455138 is 831554.

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

It can be written as a sum of positive squares in only one way, i.e., 452929 + 2209 = 673^2 + 47^2 .

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 455138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113783 + ... + 113786.

2⁴⁵⁵¹³⁸ is an apocalyptic number.

455138 is a deficient number, since it is larger than the sum of its proper divisors (227572).

455138 is a wasteful number, since it uses less digits than its factorization.

455138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227571.

The product of its digits is 2400, while the sum is 26.

The square root of 455138 is about 674.6391628122. The cubic root of 455138 is about 76.9214919161.

The spelling of 455138 in words is "four hundred fifty-five thousand, one hundred thirty-eight".