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5123149 = 43283421
BaseRepresentation
bin10011100010110001001101
3100122021122021
4103202301031
52302420044
6301450141
761355203
oct23426115
910567567
105123149
11298a109
121870951
1310a4b65
14975073
156b2e84
hex4e2c4d

5123149 has 8 divisors (see below), whose sum is σ = 5273312. Its totient is φ = 4974480.

The previous prime is 5123143. The next prime is 5123177. The reversal of 5123149 is 9413215.

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 5123149 - 213 = 5114957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123143) 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, 11959 + ... + 12379.

It is an arithmetic number, because the mean of its divisors is an integer number (659164).

Almost surely, 25123149 is an apocalyptic number.

It is an amenable number.

5123149 is a deficient number, since it is larger than the sum of its proper divisors (150163).

5123149 is a wasteful number, since it uses less digits than its factorization.

5123149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 1080, while the sum is 25.

The square root of 5123149 is about 2263.4374301049. The cubic root of 5123149 is about 172.3901029340.

The spelling of 5123149 in words is "five million, one hundred twenty-three thousand, one hundred forty-nine".

Divisors: 1 43 283 421 12169 18103 119143 5123149