210065131 has 2 divisors, whose sum is σ = 210065132. Its totient is φ = 210065130.

The previous prime is 210065123. The next prime is 210065143. The reversal of 210065131 is 131560012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210065131 - 2³ = 210065123 is a prime.

It is a super-2 number, since 2×210065131² = 88254718524094322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 210065099 and 210065108.

It is not a weakly prime, because it can be changed into another prime (210065731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105032565 + 105032566.

It is an arithmetic number, because the mean of its divisors is an integer number (105032566).

Almost surely, 2^210065131 is an apocalyptic number.

210065131 is a deficient number, since it is larger than the sum of its proper divisors (1).

210065131 is an equidigital number, since it uses as much as digits as its factorization.

210065131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 210065131 is about 14493.6238049702. The cubic root of 210065131 is about 594.4536386993.

The spelling of 210065131 in words is "two hundred ten million, sixty-five thousand, one hundred thirty-one".