Search a number
BaseRepresentation
bin1010000001001
321000222
41100021
5131004
635425
720645
oct12011
97028
105129
113943
122b75
132447
141c25
1517be
hex1409

5129 has 4 divisors (see below), whose sum is σ = 5376. Its totient is φ = 4884.

The previous prime is 5119. The next prime is 5147. The reversal of 5129 is 9215.

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 5129 - 24 = 5113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13 and base 15.

It is not an unprimeable number, because it can be changed into a prime (5119) 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, 89 + ... + 134.

It is an arithmetic number, because the mean of its divisors is an integer number (1344).

25129 is an apocalyptic number.

It is an amenable number.

5129 is a deficient number, since it is larger than the sum of its proper divisors (247).

5129 is a wasteful number, since it uses less digits than its factorization.

5129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246.

The product of its digits is 90, while the sum is 17.

The square root of 5129 is about 71.6170370792. The cubic root of 5129 is about 17.2455705213.

The spelling of 5129 in words is "five thousand, one hundred twenty-nine".

Divisors: 1 23 223 5129