2190131 has 2 divisors, whose sum is σ = 2190132. Its totient is φ = 2190130.

The previous prime is 2190107. The next prime is 2190143. The reversal of 2190131 is 1310912.

It is a happy number.

2190131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2190131 - 2¹⁴ = 2173747 is a prime.

It is a super-2 number, since 2×2190131² = 9593347594322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p₁₆₂₀₀₈ and since 2190131 and 162008 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2190191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095065 + 1095066.

It is an arithmetic number, because the mean of its divisors is an integer number (1095066).

2^2190131 is an apocalyptic number.

2190131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190131 is an equidigital number, since it uses as much as digits as its factorization.

2190131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 2190131 is about 1479.9091188313. The cubic root of 2190131 is about 129.8643753218.

The spelling of 2190131 in words is "two million, one hundred ninety thousand, one hundred thirty-one".