1743431161 has 4 divisors (see below), whose sum is σ = 1749381732. Its totient is φ = 1737480592.

The previous prime is 1743431117. The next prime is 1743431167. The reversal of 1743431161 is 1611343471.

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 1685595136 + 57836025 = 41056^2 + 7605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1743431161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1743431167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2974846 + ... + 2975431.

It is an arithmetic number, because the mean of its divisors is an integer number (437345433).

Almost surely, 2^1743431161 is an apocalyptic number.

It is an amenable number.

1743431161 is a deficient number, since it is larger than the sum of its proper divisors (5950571).

1743431161 is an equidigital number, since it uses as much as digits as its factorization.

1743431161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950570.

The product of its digits is 6048, while the sum is 31.

The square root of 1743431161 is about 41754.4148683705. The cubic root of 1743431161 is about 1203.5614476282.

The spelling of 1743431161 in words is "one billion, seven hundred forty-three million, four hundred thirty-one thousand, one hundred sixty-one".