143162323621 has 4 divisors (see below), whose sum is σ = 148098955500. Its totient is φ = 138225691744.

The previous prime is 143162323607. The next prime is 143162323673. The reversal of 143162323621 is 126323261341.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104623137025 + 38539186596 = 323455^2 + 196314^2 .

It is a cyclic number.

It is not a de Polignac number, because 143162323621 - 2¹¹ = 143162321573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143162323121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2468315896 + ... + 2468315953.

It is an arithmetic number, because the mean of its divisors is an integer number (37024738875).

Almost surely, 2^143162323621 is an apocalyptic number.

It is an amenable number.

143162323621 is a deficient number, since it is larger than the sum of its proper divisors (4936631879).

143162323621 is an equidigital number, since it uses as much as digits as its factorization.

143162323621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936631878.

The product of its digits is 31104, while the sum is 34.

Adding to 143162323621 its reverse (126323261341), we get a palindrome (269485584962).

The spelling of 143162323621 in words is "one hundred forty-three billion, one hundred sixty-two million, three hundred twenty-three thousand, six hundred twenty-one".