144726646 has 16 divisors (see below), whose sum is σ = 228387600. Its totient is φ = 68682208.

The previous prime is 144726643. The next prime is 144726653. The reversal of 144726646 is 646627441.

It is a junction number, because it is equal to n+sod(n) for n = 144726599 and 144726608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144726643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17725 + ... + 24568.

It is an arithmetic number, because the mean of its divisors is an integer number (14274225).

Almost surely, 2^144726646 is an apocalyptic number.

144726646 is a deficient number, since it is larger than the sum of its proper divisors (83660954).

144726646 is a wasteful number, since it uses less digits than its factorization.

144726646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42383.

The product of its digits is 193536, while the sum is 40.

The square root of 144726646 is about 12030.2388172471. The cubic root of 144726646 is about 525.0284441127.

The spelling of 144726646 in words is "one hundred forty-four million, seven hundred twenty-six thousand, six hundred forty-six".