213053149 has 2 divisors, whose sum is σ = 213053150. Its totient is φ = 213053148.

The previous prime is 213053123. The next prime is 213053167. The reversal of 213053149 is 941350312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180768025 + 32285124 = 13445^2 + 5682^2 .

It is a cyclic number.

It is not a de Polignac number, because 213053149 - 2¹³ = 213044957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213053119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106526574 + 106526575.

It is an arithmetic number, because the mean of its divisors is an integer number (106526575).

Almost surely, 2^213053149 is an apocalyptic number.

It is an amenable number.

213053149 is a deficient number, since it is larger than the sum of its proper divisors (1).

213053149 is an equidigital number, since it uses as much as digits as its factorization.

213053149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 213053149 is about 14596.3402604900. The cubic root of 213053149 is about 597.2589308956.

The spelling of 213053149 in words is "two hundred thirteen million, fifty-three thousand, one hundred forty-nine".