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144201001 = 7131157253
BaseRepresentation
bin10001001100001…
…01010100101001
3101001100011120211
420212011110221
5243403413001
622150421121
73400455040
oct1046052451
9331304524
10144201001
117444138a
12403617a1
1323b4b549
1415219557
15c9d6351
hex8985529

144201001 has 8 divisors (see below), whose sum is σ = 166060224. Its totient is φ = 122656560.

The previous prime is 144200981. The next prime is 144201017. The reversal of 144201001 is 100102441.

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 144201001 - 227 = 9983273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144201041) 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, 77710 + ... + 79543.

It is an arithmetic number, because the mean of its divisors is an integer number (20757528).

Almost surely, 2144201001 is an apocalyptic number.

It is an amenable number.

144201001 is a deficient number, since it is larger than the sum of its proper divisors (21859223).

144201001 is a wasteful number, since it uses less digits than its factorization.

144201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157391.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 144201001 is about 12008.3721211495. The cubic root of 144201001 is about 524.3920412189.

Adding to 144201001 its reverse (100102441), we get a palindrome (244303442).

The spelling of 144201001 in words is "one hundred forty-four million, two hundred one thousand, one".

Divisors: 1 7 131 917 157253 1100771 20600143 144201001