45122894 has 4 divisors (see below), whose sum is σ = 67684344. Its totient is φ = 22561446.

The previous prime is 45122893. The next prime is 45122897. The reversal of 45122894 is 49822154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49822154 = 2 ⋅24911077.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45122893) by changing a digit.

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, 11280722 + ... + 11280725.

It is an arithmetic number, because the mean of its divisors is an integer number (16921086).

Almost surely, 2^45122894 is an apocalyptic number.

45122894 is a deficient number, since it is larger than the sum of its proper divisors (22561450).

45122894 is a wasteful number, since it uses less digits than its factorization.

45122894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22561449.

The product of its digits is 23040, while the sum is 35.

The square root of 45122894 is about 6717.3576650347. The cubic root of 45122894 is about 356.0128293571.

The spelling of 45122894 in words is "forty-five million, one hundred twenty-two thousand, eight hundred ninety-four".