1345743161 has 8 divisors (see below), whose sum is σ = 1538747904. Its totient is φ = 1152927360.

The previous prime is 1345743121. The next prime is 1345743163. The reversal of 1345743161 is 1613475431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345743161 - 2⁶ = 1345743097 is a prime.

It is a super-2 number, since 2×1345743161² = 3622049310756543842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1345743163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31625 + ... + 60758.

It is an arithmetic number, because the mean of its divisors is an integer number (192343488).

Almost surely, 2^1345743161 is an apocalyptic number.

It is an amenable number.

1345743161 is a deficient number, since it is larger than the sum of its proper divisors (193004743).

1345743161 is an equidigital number, since it uses as much as digits as its factorization.

1345743161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94471.

The product of its digits is 30240, while the sum is 35.

The square root of 1345743161 is about 36684.3721630887. The cubic root of 1345743161 is about 1104.0465724704.

The spelling of 1345743161 in words is "one billion, three hundred forty-five million, seven hundred forty-three thousand, one hundred sixty-one".