144620641 has 8 divisors (see below), whose sum is σ = 158328864. Its totient is φ = 131005920.

The previous prime is 144620633. The next prime is 144620659. The reversal of 144620641 is 146026441.

144620641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144620641 - 2³ = 144620633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144620621) 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, 20116 + ... + 26341.

It is an arithmetic number, because the mean of its divisors is an integer number (19791108).

Almost surely, 2^144620641 is an apocalyptic number.

144620641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144620641 is a deficient number, since it is larger than the sum of its proper divisors (13708223).

144620641 is a wasteful number, since it uses less digits than its factorization.

144620641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46751.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 144620641 is about 12025.8322373131. The cubic root of 144620641 is about 524.9002271473.

The spelling of 144620641 in words is "one hundred forty-four million, six hundred twenty thousand, six hundred forty-one".