45623143 has 2 divisors, whose sum is σ = 45623144. Its totient is φ = 45623142.

The previous prime is 45623131. The next prime is 45623147. The reversal of 45623143 is 34132654.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45623143 - 2⁵ = 45623111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45623147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22811571 + 22811572.

It is an arithmetic number, because the mean of its divisors is an integer number (22811572).

Almost surely, 2^45623143 is an apocalyptic number.

45623143 is a deficient number, since it is larger than the sum of its proper divisors (1).

45623143 is an equidigital number, since it uses as much as digits as its factorization.

45623143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 45623143 is about 6754.4905803473. The cubic root of 45623143 is about 357.3236269555.

Adding to 45623143 its reverse (34132654), we get a palindrome (79755797).

The spelling of 45623143 in words is "forty-five million, six hundred twenty-three thousand, one hundred forty-three".