144307741 has 8 divisors (see below), whose sum is σ = 152926200. Its totient is φ = 135932160.

The previous prime is 144307739. The next prime is 144307763. The reversal of 144307741 is 147703441.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 143880025 = 654^2 + 11995^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144307741 - 2¹ = 144307739 is a prime.

It is a super-2 number, since 2×144307741² = 41649448225046162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144307721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59496 + ... + 61873.

It is an arithmetic number, because the mean of its divisors is an integer number (19115775).

Almost surely, 2^144307741 is an apocalyptic number.

It is an amenable number.

144307741 is a deficient number, since it is larger than the sum of its proper divisors (8618459).

144307741 is a wasteful number, since it uses less digits than its factorization.

144307741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121439.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 144307741 is about 12012.8156982449. The cubic root of 144307741 is about 524.5213972356.

The spelling of 144307741 in words is "one hundred forty-four million, three hundred seven thousand, seven hundred forty-one".