1270507213 has 2 divisors, whose sum is σ = 1270507214. Its totient is φ = 1270507212.

The previous prime is 1270507177. The next prime is 1270507229. The reversal of 1270507213 is 3127050721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1239180804 + 31326409 = 35202^2 + 5597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270507213 is a prime.

It is a super-2 number, since 2×1270507213² = 3228377156570054738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270567213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635253606 + 635253607.

It is an arithmetic number, because the mean of its divisors is an integer number (635253607).

Almost surely, 2^1270507213 is an apocalyptic number.

It is an amenable number.

1270507213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270507213 is an equidigital number, since it uses as much as digits as its factorization.

1270507213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 1270507213 is about 35644.1750220145. The cubic root of 1270507213 is about 1083.0762809025.

Adding to 1270507213 its reverse (3127050721), we get a palindrome (4397557934).

The spelling of 1270507213 in words is "one billion, two hundred seventy million, five hundred seven thousand, two hundred thirteen".