161053427 has 4 divisors (see below), whose sum is σ = 170527176. Its totient is φ = 151579680.

The previous prime is 161053411. The next prime is 161053507. The reversal of 161053427 is 724350161.

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 161053427 - 2⁴ = 161053411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161053427.

It is not an unprimeable number, because it can be changed into a prime (161053927) 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, 4736849 + ... + 4736882.

It is an arithmetic number, because the mean of its divisors is an integer number (42631794).

Almost surely, 2^161053427 is an apocalyptic number.

161053427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

161053427 is a deficient number, since it is larger than the sum of its proper divisors (9473749).

161053427 is an equidigital number, since it uses as much as digits as its factorization.

161053427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9473748.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 161053427 is about 12690.6826845525. The cubic root of 161053427 is about 544.0723517432.

The spelling of 161053427 in words is "one hundred sixty-one million, fifty-three thousand, four hundred twenty-seven".