144602261 has 4 divisors (see below), whose sum is σ = 145953792. Its totient is φ = 143250732.

The previous prime is 144602257. The next prime is 144602287. The reversal of 144602261 is 162206441.

144602261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144602261 - 2² = 144602257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144602261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144602201) 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, 675605 + ... + 675818.

It is an arithmetic number, because the mean of its divisors is an integer number (36488448).

Almost surely, 2^144602261 is an apocalyptic number.

It is an amenable number.

144602261 is a deficient number, since it is larger than the sum of its proper divisors (1351531).

144602261 is a wasteful number, since it uses less digits than its factorization.

144602261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351530.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 144602261 is about 12025.0680247556. The cubic root of 144602261 is about 524.8779894851.

The spelling of 144602261 in words is "one hundred forty-four million, six hundred two thousand, two hundred sixty-one".