1254164213 has 2 divisors, whose sum is σ = 1254164214. Its totient is φ = 1254164212.

The previous prime is 1254164203. The next prime is 1254164231. The reversal of 1254164213 is 3124614521.

Together with next prime (1254164231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227311089 + 26853124 = 35033^2 + 5182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254164213 - 2²⁰ = 1253115637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254164203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627082106 + 627082107.

It is an arithmetic number, because the mean of its divisors is an integer number (627082107).

Almost surely, 2^1254164213 is an apocalyptic number.

It is an amenable number.

1254164213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254164213 is an equidigital number, since it uses as much as digits as its factorization.

1254164213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 1254164213 is about 35414.1809590452. The cubic root of 1254164213 is about 1078.4122224627.

Adding to 1254164213 its reverse (3124614521), we get a palindrome (4378778734).

The spelling of 1254164213 in words is "one billion, two hundred fifty-four million, one hundred sixty-four thousand, two hundred thirteen".