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134121001 = 719160143
BaseRepresentation
bin1111111111010…
…00011000101001
3100100101001102111
413333220120221
5233313333001
621150402321
73216003220
oct777503051
9310331374
10134121001
1169787103
1238b003a1
1321a2c451
1413b53cb7
15bb94851
hex7fe8629

134121001 has 4 divisors (see below), whose sum is σ = 153281152. Its totient is φ = 114960852.

The previous prime is 134120993. The next prime is 134121011. The reversal of 134121001 is 100121431.

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 134121001 - 23 = 134120993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134121011) 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, 9580065 + ... + 9580078.

It is an arithmetic number, because the mean of its divisors is an integer number (38320288).

Almost surely, 2134121001 is an apocalyptic number.

It is an amenable number.

134121001 is a deficient number, since it is larger than the sum of its proper divisors (19160151).

134121001 is an equidigital number, since it uses as much as digits as its factorization.

134121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19160150.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 134121001 is about 11581.0621706301. The cubic root of 134121001 is about 511.8769757011.

Adding to 134121001 its reverse (100121431), we get a palindrome (234242432).

The spelling of 134121001 in words is "one hundred thirty-four million, one hundred twenty-one thousand, one".

Divisors: 1 7 19160143 134121001