1206131 has 2 divisors, whose sum is σ = 1206132. Its totient is φ = 1206130.

The previous prime is 1206113. The next prime is 1206151. The reversal of 1206131 is 1316021.

Together with previous prime (1206113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1206131 is a prime.

It is a super-2 number, since 2×1206131² = 2909503978322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1206151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603065 + 603066.

It is an arithmetic number, because the mean of its divisors is an integer number (603066).

2^1206131 is an apocalyptic number.

1206131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206131 is an equidigital number, since it uses as much as digits as its factorization.

1206131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1206131 is about 1098.2399555653. The cubic root of 1206131 is about 106.4465262348.

The spelling of 1206131 in words is "one million, two hundred six thousand, one hundred thirty-one".