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144153121 = 723895361
BaseRepresentation
bin10001001011110…
…01101000100001
3101001020201220111
420211321220201
5243400344441
622145411321
73400165330
oct1045715041
9331221814
10144153121
1174409412
1240339b41
1323b32808
1415205d17
15c9c7081
hex8979a21

144153121 has 8 divisors (see below), whose sum is σ = 171909504. Its totient is φ = 118187520.

The previous prime is 144153109. The next prime is 144153127. The reversal of 144153121 is 121351441.

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 144153121 - 27 = 144152993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144153092 and 144153101.

It is not an unprimeable number, because it can be changed into a prime (144153127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447520 + ... + 447841.

It is an arithmetic number, because the mean of its divisors is an integer number (21488688).

Almost surely, 2144153121 is an apocalyptic number.

It is an amenable number.

144153121 is a deficient number, since it is larger than the sum of its proper divisors (27756383).

144153121 is an equidigital number, since it uses as much as digits as its factorization.

144153121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895391.

The product of its digits is 480, while the sum is 22.

The square root of 144153121 is about 12006.3783465290. The cubic root of 144153121 is about 524.3339956894. Note that the first 3 decimals are identical.

The spelling of 144153121 in words is "one hundred forty-four million, one hundred fifty-three thousand, one hundred twenty-one".

Divisors: 1 7 23 161 895361 6267527 20593303 144153121