144764161 has 4 divisors (see below), whose sum is σ = 144858112. Its totient is φ = 144670212.

The previous prime is 144764077. The next prime is 144764167. The reversal of 144764161 is 161467441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144764161 - 2⁷ = 144764033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144764167) 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, 44625 + ... + 47758.

It is an arithmetic number, because the mean of its divisors is an integer number (36214528).

Almost surely, 2^144764161 is an apocalyptic number.

It is an amenable number.

144764161 is a deficient number, since it is larger than the sum of its proper divisors (93951).

144764161 is an equidigital number, since it uses as much as digits as its factorization.

144764161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93950.

The product of its digits is 16128, while the sum is 34.

The square root of 144764161 is about 12031.7979121992. The cubic root of 144764161 is about 525.0738048923.

The spelling of 144764161 in words is "one hundred forty-four million, seven hundred sixty-four thousand, one hundred sixty-one".