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143135201 = 1113012291
BaseRepresentation
bin10001000100000…
…01000111100001
3100222100000120202
420202001013201
5243120311301
622111514545
73355425536
oct1042010741
9328300522
10143135201
1173883660
123bb28a55
13238673b1
141501cd8d
15c87566b
hex88811e1

143135201 has 4 divisors (see below), whose sum is σ = 156147504. Its totient is φ = 130122900.

The previous prime is 143135177. The next prime is 143135221. The reversal of 143135201 is 102531341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143135201 - 26 = 143135137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143135221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6506135 + ... + 6506156.

It is an arithmetic number, because the mean of its divisors is an integer number (39036876).

Almost surely, 2143135201 is an apocalyptic number.

143135201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143135201 is a deficient number, since it is larger than the sum of its proper divisors (13012303).

143135201 is a wasteful number, since it uses less digits than its factorization.

143135201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13012302.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 143135201 is about 11963.9124453500. The cubic root of 143135201 is about 523.0969053436.

Adding to 143135201 its reverse (102531341), we get a palindrome (245666542).

The spelling of 143135201 in words is "one hundred forty-three million, one hundred thirty-five thousand, two hundred one".

Divisors: 1 11 13012291 143135201