144912305 has 16 divisors (see below), whose sum is σ = 181833984. Its totient is φ = 110658240.

The previous prime is 144912283. The next prime is 144912311. The reversal of 144912305 is 503219441.

144912305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144912305 - 2¹² = 144908209 is a prime.

It is a super-2 number, since 2×144912305² = 41999152280826050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71567 + ... + 73563.

It is an arithmetic number, because the mean of its divisors is an integer number (11364624).

Almost surely, 2^144912305 is an apocalyptic number.

It is an amenable number.

144912305 is a deficient number, since it is larger than the sum of its proper divisors (36921679).

144912305 is a wasteful number, since it uses less digits than its factorization.

144912305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 144912305 is about 12037.9526913840. The cubic root of 144912305 is about 525.2528547669.

The spelling of 144912305 in words is "one hundred forty-four million, nine hundred twelve thousand, three hundred five".