45273881 has 4 divisors (see below), whose sum is σ = 46378164. Its totient is φ = 44169600.

The previous prime is 45273871. The next prime is 45273923. The reversal of 45273881 is 18837254.

45273881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13249600 + 32024281 = 3640^2 + 5659^2 .

It is a cyclic number.

It is not a de Polignac number, because 45273881 - 2¹⁴ = 45257497 is a prime.

It is a super-2 number, since 2×45273881² = 4099448601604322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45273841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552080 + ... + 552161.

It is an arithmetic number, because the mean of its divisors is an integer number (11594541).

Almost surely, 2^45273881 is an apocalyptic number.

45273881 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45273881 is a deficient number, since it is larger than the sum of its proper divisors (1104283).

45273881 is a wasteful number, since it uses less digits than its factorization.

45273881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104282.

The product of its digits is 53760, while the sum is 38.

The square root of 45273881 is about 6728.5868501491. The cubic root of 45273881 is about 356.4094754965.

The spelling of 45273881 in words is "forty-five million, two hundred seventy-three thousand, eight hundred eighty-one".