143736121 has 9 divisors (see below), whose sum is σ = 151940133. Its totient is φ = 135955260.

The previous prime is 143736101. The next prime is 143736149. The reversal of 143736121 is 121637341.

The square root of 143736121 is 11989.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 143736121 - 2¹⁹ = 143211833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143736121.

It is not an unprimeable number, because it can be changed into a prime (143736101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 227476 + ... + 228106.

It is an arithmetic number, because the mean of its divisors is an integer number (16882237).

Almost surely, 2^143736121 is an apocalyptic number.

143736121 is the 11989-th square number.

143736121 is the 5995-th centered octagonal number.

It is an amenable number.

143736121 is a deficient number, since it is larger than the sum of its proper divisors (8204012).

143736121 is an frugal number, since it uses more digits than its factorization.

143736121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 650 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The cubic root of 143736121 is about 523.8279170481.

The spelling of 143736121 in words is "one hundred forty-three million, seven hundred thirty-six thousand, one hundred twenty-one".