144364261 has 12 divisors (see below), whose sum is σ = 158995872. Its totient is φ = 130812264.

The previous prime is 144364219. The next prime is 144364267. The reversal of 144364261 is 162463441.

144364261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144364261 - 2¹¹ = 144362213 is a prime.

It is a super-2 number, since 2×144364261² = 41682079708152242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144364267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391 + ... + 16996.

It is an arithmetic number, because the mean of its divisors is an integer number (13249656).

Almost surely, 2^144364261 is an apocalyptic number.

It is an amenable number.

144364261 is a deficient number, since it is larger than the sum of its proper divisors (14631611).

144364261 is a wasteful number, since it uses less digits than its factorization.

144364261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17448 (or 17429 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 144364261 is about 12015.1679555469. The cubic root of 144364261 is about 524.5898668353.

The spelling of 144364261 in words is "one hundred forty-four million, three hundred sixty-four thousand, two hundred sixty-one".