146144161 has 4 divisors (see below), whose sum is σ = 148901652. Its totient is φ = 143386672.

The previous prime is 146144129. The next prime is 146144179. The reversal of 146144161 is 161441641.

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 100500625 + 45643536 = 10025^2 + 6756^2 .

It is a cyclic number.

It is not a de Polignac number, because 146144161 - 2⁵ = 146144129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146144101) 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, 1378666 + ... + 1378771.

It is an arithmetic number, because the mean of its divisors is an integer number (37225413).

Almost surely, 2^146144161 is an apocalyptic number.

It is an amenable number.

146144161 is a deficient number, since it is larger than the sum of its proper divisors (2757491).

146144161 is an equidigital number, since it uses as much as digits as its factorization.

146144161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757490.

The product of its digits is 2304, while the sum is 28.

The square root of 146144161 is about 12089.0099263753. The cubic root of 146144161 is about 526.7369962072.

The spelling of 146144161 in words is "one hundred forty-six million, one hundred forty-four thousand, one hundred sixty-one".