1043219147161 has 3 divisors (see below), whose sum is σ = 1043220168543. Its totient is φ = 1043218125780.

The previous prime is 1043219147141. The next prime is 1043219147167. The reversal of 1043219147161 is 1617419123401.

The square root of 1043219147161 is 1021381.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 774169457161 + 269049690000 = 879869^2 + 518700^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1043219147161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043219147167) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 510691 + ... + 1532071.

It is an arithmetic number, because the mean of its divisors is an integer number (347740056181).

Almost surely, 2^{1043219147161} is an apocalyptic number.

1043219147161 is the 1021381-st square number.

1043219147161 is the 510691-st centered octagonal number.

It is an amenable number.

1043219147161 is a deficient number, since it is larger than the sum of its proper divisors (1021382).

1043219147161 is an frugal number, since it uses more digits than its factorization.

1043219147161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042762 (or 1021381 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 1043219147161 in words is "one trillion, forty-three billion, two hundred nineteen million, one hundred forty-seven thousand, one hundred sixty-one".