161054422 has 8 divisors (see below), whose sum is σ = 242128296. Its totient is φ = 80344992.

The previous prime is 161054417. The next prime is 161054423. The reversal of 161054422 is 224450161.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161054423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90003 + ... + 91774.

It is an arithmetic number, because the mean of its divisors is an integer number (30266037).

Almost surely, 2^161054422 is an apocalyptic number.

161054422 is a deficient number, since it is larger than the sum of its proper divisors (81073874).

161054422 is a wasteful number, since it uses less digits than its factorization.

161054422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182222.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 161054422 is about 12690.7218864807. The cubic root of 161054422 is about 544.0734721807.

The spelling of 161054422 in words is "one hundred sixty-one million, fifty-four thousand, four hundred twenty-two".