1273228351 has 2 divisors, whose sum is σ = 1273228352. Its totient is φ = 1273228350.

The previous prime is 1273228301. The next prime is 1273228357. The reversal of 1273228351 is 1538223721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1273228351 - 2⁷ = 1273228223 is a prime.

It is a super-2 number, since 2×1273228351² = 3242220867580358402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273228357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636614175 + 636614176.

It is an arithmetic number, because the mean of its divisors is an integer number (636614176).

Almost surely, 2^1273228351 is an apocalyptic number.

1273228351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273228351 is an equidigital number, since it uses as much as digits as its factorization.

1273228351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 1273228351 is about 35682.3254707425. The cubic root of 1273228351 is about 1083.8489640265.

The spelling of 1273228351 in words is "one billion, two hundred seventy-three million, two hundred twenty-eight thousand, three hundred fifty-one".