456681149 has 4 divisors (see below), whose sum is σ = 483544764. Its totient is φ = 429817536.

The previous prime is 456681133. The next prime is 456681223. The reversal of 456681149 is 941186654.

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

It can be written as a sum of positive squares in 2 ways, for example, as 395293924 + 61387225 = 19882^2 + 7835^2 .

It is a cyclic number.

It is not a de Polignac number, because 456681149 - 2⁴ = 456681133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456681109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13431782 + ... + 13431815.

It is an arithmetic number, because the mean of its divisors is an integer number (120886191).

Almost surely, 2^456681149 is an apocalyptic number.

It is an amenable number.

456681149 is a deficient number, since it is larger than the sum of its proper divisors (26863615).

456681149 is a wasteful number, since it uses less digits than its factorization.

456681149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26863614.

The product of its digits is 207360, while the sum is 44.

The square root of 456681149 is about 21370.0994148366. The cubic root of 456681149 is about 770.0832815976.

The spelling of 456681149 in words is "four hundred fifty-six million, six hundred eighty-one thousand, one hundred forty-nine".