163420153 has 4 divisors (see below), whose sum is σ = 175990948. Its totient is φ = 150849360.

The previous prime is 163420141. The next prime is 163420163. The reversal of 163420153 is 351024361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351024361 = 2347 ⋅149563.

It can be written as a sum of positive squares in 2 ways, for example, as 51652969 + 111767184 = 7187^2 + 10572^2 .

It is a cyclic number.

It is not a de Polignac number, because 163420153 - 2¹³ = 163411961 is a prime.

It is a super-2 number, since 2×163420153² = 53412292813086818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163420123) 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, 6285378 + ... + 6285403.

It is an arithmetic number, because the mean of its divisors is an integer number (43997737).

Almost surely, 2^163420153 is an apocalyptic number.

163420153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163420153 is a deficient number, since it is larger than the sum of its proper divisors (12570795).

163420153 is a wasteful number, since it uses less digits than its factorization.

163420153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570794.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 163420153 is about 12783.5892064788. The cubic root of 163420153 is about 546.7245019037.

The spelling of 163420153 in words is "one hundred sixty-three million, four hundred twenty thousand, one hundred fifty-three".