45122405 has 8 divisors (see below), whose sum is σ = 56014200. Its totient is φ = 34853056.

The previous prime is 45122401. The next prime is 45122419. The reversal of 45122405 is 50422154.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8168164 + 36954241 = 2858^2 + 6079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45122405 - 2² = 45122401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45122401) 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 in 7 ways as a sum of consecutive naturals, for example, 155450 + ... + 155739.

It is an arithmetic number, because the mean of its divisors is an integer number (7001775).

Almost surely, 2^45122405 is an apocalyptic number.

It is an amenable number.

45122405 is a deficient number, since it is larger than the sum of its proper divisors (10891795).

45122405 is a wasteful number, since it uses less digits than its factorization.

45122405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311223.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45122405 is about 6717.3212666955. The cubic root of 45122405 is about 356.0115433071.

Adding to 45122405 its reverse (50422154), we get a palindrome (95544559).

The spelling of 45122405 in words is "forty-five million, one hundred twenty-two thousand, four hundred five".