2144001542 has 4 divisors (see below), whose sum is σ = 3216002316. Its totient is φ = 1072000770.

The previous prime is 2144001539. The next prime is 2144001569. The reversal of 2144001542 is 2451004412.

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

It is a super-2 number, since 2×2144001542² = 9193485224196755528, 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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536000384 + ... + 536000387.

It is an arithmetic number, because the mean of its divisors is an integer number (804000579).

Almost surely, 2^2144001542 is an apocalyptic number.

2144001542 is a deficient number, since it is larger than the sum of its proper divisors (1072000774).

2144001542 is a wasteful number, since it uses less digits than its factorization.

2144001542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072000773.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2144001542 is about 46303.3642622218. The cubic root of 2144001542 is about 1289.4614545872.

Adding to 2144001542 its reverse (2451004412), we get a palindrome (4595005954).

The spelling of 2144001542 in words is "two billion, one hundred forty-four million, one thousand, five hundred forty-two".