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12951131 is a prime number
BaseRepresentation
bin110001011001…
…111001011011
3220100222121112
4301121321123
511303414011
61141330535
7215040254
oct61317133
926328545
1012951131
117346416
124406a4b
1328b5bbb
141a11b2b
15120c58b
hexc59e5b

12951131 has 2 divisors, whose sum is σ = 12951132. Its totient is φ = 12951130.

The previous prime is 12951109. The next prime is 12951151. The reversal of 12951131 is 13115921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12951131 - 26 = 12951067 is a prime.

It is a super-2 number, since 2×129511312 = 335463588358322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12951097 and 12951106.

It is not a weakly prime, because it can be changed into another prime (12951151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6475565 + 6475566.

It is an arithmetic number, because the mean of its divisors is an integer number (6475566).

Almost surely, 212951131 is an apocalyptic number.

12951131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12951131 is an equidigital number, since it uses as much as digits as its factorization.

12951131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 23.

The square root of 12951131 is about 3598.7679836300. The cubic root of 12951131 is about 234.8384645127.

The spelling of 12951131 in words is "twelve million, nine hundred fifty-one thousand, one hundred thirty-one".