146663161 has 4 divisors (see below), whose sum is σ = 146718324. Its totient is φ = 146608000.

The previous prime is 146663159. The next prime is 146663177. The reversal of 146663161 is 161366641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36832761 + 109830400 = 6069^2 + 10480^2 .

It is a cyclic number.

It is not a de Polignac number, because 146663161 - 2¹ = 146663159 is a prime.

It is a super-4 number, since 4×146663161⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146663141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23380 + ... + 28981.

It is an arithmetic number, because the mean of its divisors is an integer number (36679581).

Almost surely, 2^146663161 is an apocalyptic number.

It is an amenable number.

146663161 is a deficient number, since it is larger than the sum of its proper divisors (55163).

146663161 is an equidigital number, since it uses as much as digits as its factorization.

146663161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55162.

The product of its digits is 15552, while the sum is 34.

The square root of 146663161 is about 12110.4566800761. The cubic root of 146663161 is about 527.3597911315.

The spelling of 146663161 in words is "one hundred forty-six million, six hundred sixty-three thousand, one hundred sixty-one".