144263842 has 4 divisors (see below), whose sum is σ = 216395766. Its totient is φ = 72131920.

The previous prime is 144263837. The next prime is 144263849. The reversal of 144263842 is 248362441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 142301041 + 1962801 = 11929^2 + 1401^2 .

It is a super-2 number, since 2×144263842² = 41624112217201928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144263798 and 144263807.

It is not an unprimeable number, because it can be changed into a prime (144263849) 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 as a sum of consecutive naturals, namely, 36065959 + ... + 36065962.

Almost surely, 2^144263842 is an apocalyptic number.

144263842 is a deficient number, since it is larger than the sum of its proper divisors (72131924).

144263842 is an equidigital number, since it uses as much as digits as its factorization.

144263842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72131923.

The product of its digits is 36864, while the sum is 34.

The square root of 144263842 is about 12010.9883856409. The cubic root of 144263842 is about 524.4682046627.

The spelling of 144263842 in words is "one hundred forty-four million, two hundred sixty-three thousand, eight hundred forty-two".