144257069 has 8 divisors (see below), whose sum is σ = 158574240. Its totient is φ = 130140400.

The previous prime is 144257059. The next prime is 144257093. The reversal of 144257069 is 960752441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144257069 is a prime.

It is a super-2 number, since 2×144257069² = 41620203912941522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144257059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48614 + ... + 51495.

It is an arithmetic number, because the mean of its divisors is an integer number (19821780).

Almost surely, 2^144257069 is an apocalyptic number.

It is an amenable number.

144257069 is a deficient number, since it is larger than the sum of its proper divisors (14317171).

144257069 is a wasteful number, since it uses less digits than its factorization.

144257069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100251.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 144257069 is about 12010.7064321796. The cubic root of 144257069 is about 524.4599968340.

The spelling of 144257069 in words is "one hundred forty-four million, two hundred fifty-seven thousand, sixty-nine".