161462743 has 4 divisors (see below), whose sum is σ = 173882968. Its totient is φ = 149042520.

The previous prime is 161462723. The next prime is 161462761. The reversal of 161462743 is 347264161.

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

It is a cyclic number.

It is not a de Polignac number, because 161462743 - 2⁵ = 161462711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161462699 and 161462708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161462713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6210093 + ... + 6210118.

It is an arithmetic number, because the mean of its divisors is an integer number (43470742).

Almost surely, 2^161462743 is an apocalyptic number.

161462743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

161462743 is a deficient number, since it is larger than the sum of its proper divisors (12420225).

161462743 is a wasteful number, since it uses less digits than its factorization.

161462743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12420224.

The product of its digits is 24192, while the sum is 34.

The square root of 161462743 is about 12706.7990855290. The cubic root of 161462743 is about 544.5328803340.

The spelling of 161462743 in words is "one hundred sixty-one million, four hundred sixty-two thousand, seven hundred forty-three".