45278133 has 4 divisors (see below), whose sum is σ = 60370848. Its totient is φ = 30185420.

The previous prime is 45278117. The next prime is 45278147. The reversal of 45278133 is 33187254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45278133 - 2⁴ = 45278117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45278094 and 45278103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45278153) 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, 7546353 + ... + 7546358.

It is an arithmetic number, because the mean of its divisors is an integer number (15092712).

Almost surely, 2^45278133 is an apocalyptic number.

It is an amenable number.

45278133 is a deficient number, since it is larger than the sum of its proper divisors (15092715).

45278133 is a wasteful number, since it uses less digits than its factorization.

45278133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15092714.

The product of its digits is 20160, while the sum is 33.

The square root of 45278133 is about 6728.9028080364. The cubic root of 45278133 is about 356.4206328174.

The spelling of 45278133 in words is "forty-five million, two hundred seventy-eight thousand, one hundred thirty-three".