144756842 has 16 divisors (see below), whose sum is σ = 220077000. Its totient is φ = 71404032.

The previous prime is 144756823. The next prime is 144756847. The reversal of 144756842 is 248657441.

It can be written as a sum of positive squares in 4 ways, for example, as 30459361 + 114297481 = 5519^2 + 10691^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144756842.

It is not an unprimeable number, because it can be changed into a prime (144756847) 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, 51284 + ... + 54032.

Almost surely, 2^144756842 is an apocalyptic number.

144756842 is a deficient number, since it is larger than the sum of its proper divisors (75320158).

144756842 is a wasteful number, since it uses less digits than its factorization.

144756842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097.

The product of its digits is 215040, while the sum is 41.

The square root of 144756842 is about 12031.4937559723. The cubic root of 144756842 is about 525.0649558330.

The spelling of 144756842 in words is "one hundred forty-four million, seven hundred fifty-six thousand, eight hundred forty-two".