213468149 has 2 divisors, whose sum is σ = 213468150. Its totient is φ = 213468148.

The previous prime is 213468137. The next prime is 213468161. The reversal of 213468149 is 941864312.

It is a balanced prime because it is at equal distance from previous prime (213468137) and next prime (213468161).

It can be written as a sum of positive squares in only one way, i.e., 160833124 + 52635025 = 12682^2 + 7255^2 .

It is a cyclic number.

It is not a de Polignac number, because 213468149 - 2¹⁶ = 213402613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213468109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106734074 + 106734075.

It is an arithmetic number, because the mean of its divisors is an integer number (106734075).

Almost surely, 2^213468149 is an apocalyptic number.

It is an amenable number.

213468149 is a deficient number, since it is larger than the sum of its proper divisors (1).

213468149 is an equidigital number, since it uses as much as digits as its factorization.

213468149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 213468149 is about 14610.5492367672. The cubic root of 213468149 is about 597.6464737798.

The spelling of 213468149 in words is "two hundred thirteen million, four hundred sixty-eight thousand, one hundred forty-nine".