45243202 has 4 divisors (see below), whose sum is σ = 67864806. Its totient is φ = 22621600.

The previous prime is 45243197. The next prime is 45243203. The reversal of 45243202 is 20234254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20234254 = 2 ⋅10117127.

It can be written as a sum of positive squares in only one way, i.e., 31708161 + 13535041 = 5631^2 + 3679^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45243203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11310799 + ... + 11310802.

Almost surely, 2^45243202 is an apocalyptic number.

45243202 is a deficient number, since it is larger than the sum of its proper divisors (22621604).

45243202 is a wasteful number, since it uses less digits than its factorization.

45243202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22621603.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 45243202 is about 6726.3067131971. The cubic root of 45243202 is about 356.3289525637.

Adding to 45243202 its reverse (20234254), we get a palindrome (65477456).

The spelling of 45243202 in words is "forty-five million, two hundred forty-three thousand, two hundred two".