45149243 has 2 divisors, whose sum is σ = 45149244. Its totient is φ = 45149242.

The previous prime is 45149233. The next prime is 45149257. The reversal of 45149243 is 34294154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45149243 - 2⁴ = 45149227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45149233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22574621 + 22574622.

It is an arithmetic number, because the mean of its divisors is an integer number (22574622).

Almost surely, 2^45149243 is an apocalyptic number.

45149243 is a deficient number, since it is larger than the sum of its proper divisors (1).

45149243 is an equidigital number, since it uses as much as digits as its factorization.

45149243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 45149243 is about 6719.3186410528. The cubic root of 45149243 is about 356.0821124188.

It can be divided in two parts, 451 and 49243, that added together give a palindrome (49694).

The spelling of 45149243 in words is "forty-five million, one hundred forty-nine thousand, two hundred forty-three".