144636726 has 16 divisors (see below), whose sum is σ = 311525424. Its totient is φ = 44503584.

The previous prime is 144636703. The next prime is 144636733. The reversal of 144636726 is 627636441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927081 + ... + 927236.

It is an arithmetic number, because the mean of its divisors is an integer number (19470339).

Almost surely, 2^144636726 is an apocalyptic number.

144636726 is an abundant number, since it is smaller than the sum of its proper divisors (166888698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144636726 is a wasteful number, since it uses less digits than its factorization.

144636726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854335.

The product of its digits is 145152, while the sum is 39.

The square root of 144636726 is about 12026.5009874028. The cubic root of 144636726 is about 524.9196865807.

The spelling of 144636726 in words is "one hundred forty-four million, six hundred thirty-six thousand, seven hundred twenty-six".