213090953 has 2 divisors, whose sum is σ = 213090954. Its totient is φ = 213090952.

The previous prime is 213090923. The next prime is 213091001. The reversal of 213090953 is 359090312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142396489 + 70694464 = 11933^2 + 8408^2 .

It is a cyclic number.

It is not a de Polignac number, because 213090953 - 2²⁴ = 196313737 is a prime.

It is not a weakly prime, because it can be changed into another prime (213090923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106545476 + 106545477.

It is an arithmetic number, because the mean of its divisors is an integer number (106545477).

Almost surely, 2^213090953 is an apocalyptic number.

It is an amenable number.

213090953 is a deficient number, since it is larger than the sum of its proper divisors (1).

213090953 is an equidigital number, since it uses as much as digits as its factorization.

213090953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 213090953 is about 14597.6351851935. The cubic root of 213090953 is about 597.2942545404.

The spelling of 213090953 in words is "two hundred thirteen million, ninety thousand, nine hundred fifty-three".