144720735 has 16 divisors (see below), whose sum is σ = 231704064. Its totient is φ = 77134112.

The previous prime is 144720707. The next prime is 144720743. The reversal of 144720735 is 537027441.

It is a cyclic number.

It is not a de Polignac number, because 144720735 - 2⁵ = 144720703 is a prime.

It is a super-2 number, since 2×144720735² = 41888182277880450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144720696 and 144720705.

It is a congruent 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, 38134 + ... + 41756.

It is an arithmetic number, because the mean of its divisors is an integer number (14481504).

Almost surely, 2^144720735 is an apocalyptic number.

144720735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144720735 is a deficient number, since it is larger than the sum of its proper divisors (86983329).

144720735 is a wasteful number, since it uses less digits than its factorization.

144720735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 144720735 is about 12029.9931421427. The cubic root of 144720735 is about 525.0212961883.

The spelling of 144720735 in words is "one hundred forty-four million, seven hundred twenty thousand, seven hundred thirty-five".