144261542 has 4 divisors (see below), whose sum is σ = 216392316. Its totient is φ = 72130770.

The previous prime is 144261521. The next prime is 144261577. The reversal of 144261542 is 245162441.

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

It is a super-2 number, since 2×144261542² = 41622785000435528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 36065384 + ... + 36065387.

It is an arithmetic number, because the mean of its divisors is an integer number (54098079).

Almost surely, 2^144261542 is an apocalyptic number.

144261542 is a deficient number, since it is larger than the sum of its proper divisors (72130774).

144261542 is an equidigital number, since it uses as much as digits as its factorization.

144261542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72130773.

The product of its digits is 7680, while the sum is 29.

The square root of 144261542 is about 12010.8926396001. The cubic root of 144261542 is about 524.4654174472.

The spelling of 144261542 in words is "one hundred forty-four million, two hundred sixty-one thousand, five hundred forty-two".