161514743 has 16 divisors (see below), whose sum is σ = 180633600. Its totient is φ = 143411040.

The previous prime is 161514737. The next prime is 161514761. The reversal of 161514743 is 347415161.

It is a cyclic number.

It is not a de Polignac number, because 161514743 - 2⁶ = 161514679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161514733) 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 15 ways as a sum of consecutive naturals, for example, 71018 + ... + 73256.

It is an arithmetic number, because the mean of its divisors is an integer number (11289600).

Almost surely, 2^161514743 is an apocalyptic number.

161514743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

161514743 is a deficient number, since it is larger than the sum of its proper divisors (19118857).

161514743 is a wasteful number, since it uses less digits than its factorization.

161514743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462.

The product of its digits is 10080, while the sum is 32.

The square root of 161514743 is about 12708.8450694782. The cubic root of 161514743 is about 544.5913307027.

The spelling of 161514743 in words is "one hundred sixty-one million, five hundred fourteen thousand, seven hundred forty-three".