1000213457 has 2 divisors, whose sum is σ = 1000213458. Its totient is φ = 1000213456.

The previous prime is 1000213433. The next prime is 1000213471. The reversal of 1000213457 is 7543120001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605356816 + 394856641 = 24604^2 + 19871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000213457 - 2¹⁴ = 1000197073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000213957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500106728 + 500106729.

It is an arithmetic number, because the mean of its divisors is an integer number (500106729).

Almost surely, 2^1000213457 is an apocalyptic number.

It is an amenable number.

1000213457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000213457 is an equidigital number, since it uses as much as digits as its factorization.

1000213457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1000213457 is about 31626.1514731085. The cubic root of 1000213457 is about 1000.0711472713.

Adding to 1000213457 its reverse (7543120001), we get a palindrome (8543333458).

The spelling of 1000213457 in words is "one billion, two hundred thirteen thousand, four hundred fifty-seven".