161054943 has 16 divisors (see below), whose sum is σ = 248376576. Its totient is φ = 90921600.

The previous prime is 161054941. The next prime is 161054977. The reversal of 161054943 is 349450161.

161054943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161054943 - 2¹ = 161054941 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161054941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44458 + ... + 47943.

It is an arithmetic number, because the mean of its divisors is an integer number (15523536).

Almost surely, 2^161054943 is an apocalyptic number.

161054943 is a deficient number, since it is larger than the sum of its proper divisors (87321633).

161054943 is an equidigital number, since it uses as much as digits as its factorization.

161054943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92494.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 161054943 is about 12690.7424132712. The cubic root of 161054943 is about 544.0740588602.

The spelling of 161054943 in words is "one hundred sixty-one million, fifty-four thousand, nine hundred forty-three".