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12132197 = 711157561
BaseRepresentation
bin101110010001…
…111101100101
3211211101020122
4232101331211
511101212242
61112011325
7205056560
oct56217545
924741218
1012132197
116937110
124090b45
13268a21c
14187b4d7
1510e9ad2
hexb91f65

12132197 has 8 divisors (see below), whose sum is σ = 15125952. Its totient is φ = 9453600.

The previous prime is 12132151. The next prime is 12132217. The reversal of 12132197 is 79123121.

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 12132197 - 210 = 12131173 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 (12132097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78704 + ... + 78857.

It is an arithmetic number, because the mean of its divisors is an integer number (1890744).

Almost surely, 212132197 is an apocalyptic number.

It is an amenable number.

12132197 is a deficient number, since it is larger than the sum of its proper divisors (2993755).

12132197 is a wasteful number, since it uses less digits than its factorization.

12132197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157579.

The product of its digits is 756, while the sum is 26.

The square root of 12132197 is about 3483.1303449627. The cubic root of 12132197 is about 229.7804900011.

The spelling of 12132197 in words is "twelve million, one hundred thirty-two thousand, one hundred ninety-seven".

Divisors: 1 7 11 77 157561 1102927 1733171 12132197