45144229 has 4 divisors (see below), whose sum is σ = 48616876. Its totient is φ = 41671584.

The previous prime is 45144217. The next prime is 45144241. The reversal of 45144229 is 92244154.

45144229 = T₁₅₀₂ + T₁₅₀₃ + ... + T₁₅₄₀.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92244154 = 2 ⋅46122077.

It is an interprime number because it is at equal distance from previous prime (45144217) and next prime (45144241).

It can be written as a sum of positive squares in 2 ways, for example, as 3992004 + 41152225 = 1998^2 + 6415^2 .

It is a cyclic number.

It is not a de Polignac number, because 45144229 - 2¹⁵ = 45111461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45144229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45144259) 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, 1736304 + ... + 1736329.

It is an arithmetic number, because the mean of its divisors is an integer number (12154219).

Almost surely, 2^45144229 is an apocalyptic number.

It is an amenable number.

45144229 is a deficient number, since it is larger than the sum of its proper divisors (3472647).

45144229 is a wasteful number, since it uses less digits than its factorization.

45144229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472646.

The product of its digits is 11520, while the sum is 31.

The square root of 45144229 is about 6718.9455273875. The cubic root of 45144229 is about 356.0689304937.

The spelling of 45144229 in words is "forty-five million, one hundred forty-four thousand, two hundred twenty-nine".