45212143 has 2 divisors, whose sum is σ = 45212144. Its totient is φ = 45212142.

The previous prime is 45212119. The next prime is 45212147. The reversal of 45212143 is 34121254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45212143 - 2⁹ = 45211631 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45212147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22606071 + 22606072.

It is an arithmetic number, because the mean of its divisors is an integer number (22606072).

Almost surely, 2^45212143 is an apocalyptic number.

45212143 is a deficient number, since it is larger than the sum of its proper divisors (1).

45212143 is an equidigital number, since it uses as much as digits as its factorization.

45212143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 45212143 is about 6723.9975461031. The cubic root of 45212143 is about 356.2473951590.

Adding to 45212143 its reverse (34121254), we get a palindrome (79333397).

The spelling of 45212143 in words is "forty-five million, two hundred twelve thousand, one hundred forty-three".