901213 has 2 divisors, whose sum is σ = 901214. Its totient is φ = 901212.

The previous prime is 901211. The next prime is 901247. The reversal of 901213 is 312109.

901213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851929 + 49284 = 923^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 901213 - 2¹ = 901211 is a prime.

Together with 901211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450606 + 450607.

It is an arithmetic number, because the mean of its divisors is an integer number (450607).

2⁹⁰¹²¹³ is an apocalyptic number.

It is an amenable number.

901213 is a deficient number, since it is larger than the sum of its proper divisors (1).

901213 is an equidigital number, since it uses as much as digits as its factorization.

901213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 901213 is about 949.3223899182. The cubic root of 901213 is about 96.5922944929.

It can be divided in two parts, 9012 and 13, that added together give a square (9025 = 95²).

The spelling of 901213 in words is "nine hundred one thousand, two hundred thirteen".