144994571 has 8 divisors (see below), whose sum is σ = 147257040. Its totient is φ = 142739712.

The previous prime is 144994559. The next prime is 144994583. The reversal of 144994571 is 175499441.

It is an interprime number because it is at equal distance from previous prime (144994559) and next prime (144994583).

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

It is a cyclic number.

It is not a de Polignac number, because 144994571 - 2²² = 140800267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144994501) 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 in 7 ways as a sum of consecutive naturals, for example, 45395 + ... + 48483.

It is an arithmetic number, because the mean of its divisors is an integer number (18407130).

Almost surely, 2^144994571 is an apocalyptic number.

144994571 is a deficient number, since it is larger than the sum of its proper divisors (2262469).

144994571 is an equidigital number, since it uses as much as digits as its factorization.

144994571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805.

The product of its digits is 181440, while the sum is 44.

The square root of 144994571 is about 12041.3691497271. The cubic root of 144994571 is about 525.3522304482.

The spelling of 144994571 in words is "one hundred forty-four million, nine hundred ninety-four thousand, five hundred seventy-one".