1258711213 has 4 divisors (see below), whose sum is σ = 1263609180. Its totient is φ = 1253813248.

The previous prime is 1258711211. The next prime is 1258711219. The reversal of 1258711213 is 3121178521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 808719844 + 449991369 = 28438^2 + 21213^2 .

It is a cyclic number.

It is not a de Polignac number, because 1258711213 - 2¹ = 1258711211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258711211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2448598 + ... + 2449111.

It is an arithmetic number, because the mean of its divisors is an integer number (315902295).

Almost surely, 2^1258711213 is an apocalyptic number.

It is an amenable number.

1258711213 is a deficient number, since it is larger than the sum of its proper divisors (4897967).

1258711213 is an equidigital number, since it uses as much as digits as its factorization.

1258711213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897966.

The product of its digits is 3360, while the sum is 31.

The square root of 1258711213 is about 35478.3203238259. The cubic root of 1258711213 is about 1079.7139197118.

Adding to 1258711213 its reverse (3121178521), we get a palindrome (4379889734).

The spelling of 1258711213 in words is "one billion, two hundred fifty-eight million, seven hundred eleven thousand, two hundred thirteen".