144151261 has 4 divisors (see below), whose sum is σ = 144184732. Its totient is φ = 144117792.

The previous prime is 144151247. The next prime is 144151283. The reversal of 144151261 is 162151441.

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 140422500 + 3728761 = 11850^2 + 1931^2 .

It is a cyclic number.

It is not a de Polignac number, because 144151261 - 2¹⁵ = 144118493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144151291) 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, 9120 + ... + 19273.

It is an arithmetic number, because the mean of its divisors is an integer number (36046183).

Almost surely, 2^144151261 is an apocalyptic number.

It is an amenable number.

144151261 is a deficient number, since it is larger than the sum of its proper divisors (33471).

144151261 is an equidigital number, since it uses as much as digits as its factorization.

144151261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33470.

The product of its digits is 960, while the sum is 25.

The square root of 144151261 is about 12006.3008874507. The cubic root of 144151261 is about 524.3317405285.

The spelling of 144151261 in words is "one hundred forty-four million, one hundred fifty-one thousand, two hundred sixty-one".