144971001 has 24 divisors (see below), whose sum is σ = 249724800. Its totient is φ = 79238016.

The previous prime is 144970993. The next prime is 144971003. The reversal of 144971001 is 100179441.

It is not a de Polignac number, because 144971001 - 2³ = 144970993 is a prime.

It is a super-2 number, since 2×144971001² = 42033182261884002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144971003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48576 + ... + 51473.

It is an arithmetic number, because the mean of its divisors is an integer number (10405200).

Almost surely, 2^144971001 is an apocalyptic number.

It is an amenable number.

144971001 is a deficient number, since it is larger than the sum of its proper divisors (104753799).

144971001 is a wasteful number, since it uses less digits than its factorization.

144971001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100085 (or 100082 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 144971001 is about 12040.3904006473. The cubic root of 144971001 is about 525.3237622028.

It can be divided in two parts, 1449 and 71001, that multiplied together give a square (102880449 = 10143²).

The spelling of 144971001 in words is "one hundred forty-four million, nine hundred seventy-one thousand, one".