144622071 has 16 divisors (see below), whose sum is σ = 233733120. Its totient is φ = 87649560.

The previous prime is 144622069. The next prime is 144622081. The reversal of 144622071 is 170226441.

It is not a de Polignac number, because 144622071 - 2¹ = 144622069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144622081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243175 + ... + 243768.

It is an arithmetic number, because the mean of its divisors is an integer number (14608320).

Almost surely, 2^144622071 is an apocalyptic number.

144622071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144622071 is a deficient number, since it is larger than the sum of its proper divisors (89111049).

144622071 is a wasteful number, since it uses less digits than its factorization.

144622071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486963 (or 486957 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 144622071 is about 12025.8916925108. The cubic root of 144622071 is about 524.9019572020.

The spelling of 144622071 in words is "one hundred forty-four million, six hundred twenty-two thousand, seventy-one".