144703145 has 32 divisors (see below), whose sum is σ = 189665280. Its totient is φ = 105615360.

The previous prime is 144703129. The next prime is 144703147. The reversal of 144703145 is 541307441.

It is a happy number.

It is not a de Polignac number, because 144703145 - 2⁴ = 144703129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144703147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377624 + ... + 378006.

It is an arithmetic number, because the mean of its divisors is an integer number (5927040).

Almost surely, 2^144703145 is an apocalyptic number.

It is an amenable number.

144703145 is a deficient number, since it is larger than the sum of its proper divisors (44962135).

144703145 is a wasteful number, since it uses less digits than its factorization.

144703145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 144703145 is about 12029.2620305653. The cubic root of 144703145 is about 525.0000241875. Note that the first 4 decimals are identical.

The spelling of 144703145 in words is "one hundred forty-four million, seven hundred three thousand, one hundred forty-five".