143314621 has 2 divisors, whose sum is σ = 143314622. Its totient is φ = 143314620.

The previous prime is 143314603. The next prime is 143314627. The reversal of 143314621 is 126413341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141848100 + 1466521 = 11910^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 143314621 - 2⁹ = 143314109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143314627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71657310 + 71657311.

It is an arithmetic number, because the mean of its divisors is an integer number (71657311).

Almost surely, 2^143314621 is an apocalyptic number.

It is an amenable number.

143314621 is a deficient number, since it is larger than the sum of its proper divisors (1).

143314621 is an equidigital number, since it uses as much as digits as its factorization.

143314621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 143314621 is about 11971.4084802082. The cubic root of 143314621 is about 523.3153814371.

Adding to 143314621 its reverse (126413341), we get a palindrome (269727962).

The spelling of 143314621 in words is "one hundred forty-three million, three hundred fourteen thousand, six hundred twenty-one".