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12130967 = 89136303
BaseRepresentation
bin101110010001…
…101010010111
3211211022120002
4232101222113
511101142332
61112001515
7205053152
oct56215227
924738502
1012130967
1169361a2
12409029b
1326897b4
14187ac99
1510e9562
hexb91a97

12130967 has 4 divisors (see below), whose sum is σ = 12267360. Its totient is φ = 11994576.

The previous prime is 12130907. The next prime is 12130973. The reversal of 12130967 is 76903121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76903121 = 174523713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12130967 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 (12130907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68063 + ... + 68240.

It is an arithmetic number, because the mean of its divisors is an integer number (3066840).

Almost surely, 212130967 is an apocalyptic number.

12130967 is a deficient number, since it is larger than the sum of its proper divisors (136393).

12130967 is an equidigital number, since it uses as much as digits as its factorization.

12130967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136392.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 12130967 is about 3482.9537751742. The cubic root of 12130967 is about 229.7727244509.

The spelling of 12130967 in words is "twelve million, one hundred thirty thousand, nine hundred sixty-seven".

Divisors: 1 89 136303 12130967