144556738 has 8 divisors (see below), whose sum is σ = 216889488. Its totient is φ = 72260244.

The previous prime is 144556723. The next prime is 144556757. The reversal of 144556738 is 837655441.

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

It is a junction number, because it is equal to n+sod(n) for n = 144556694 and 144556703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5745 + ... + 17947.

It is an arithmetic number, because the mean of its divisors is an integer number (27111186).

Almost surely, 2^144556738 is an apocalyptic number.

144556738 is a deficient number, since it is larger than the sum of its proper divisors (72332750).

144556738 is a wasteful number, since it uses less digits than its factorization.

144556738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18128.

The product of its digits is 403200, while the sum is 43.

The square root of 144556738 is about 12023.1750382335. The cubic root of 144556738 is about 524.8229038352.

The spelling of 144556738 in words is "one hundred forty-four million, five hundred fifty-six thousand, seven hundred thirty-eight".