1551271067 has 2 divisors, whose sum is σ = 1551271068. Its totient is φ = 1551271066.

The previous prime is 1551271061. The next prime is 1551271069. The reversal of 1551271067 is 7601721551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1551271067 is a prime.

It is a super-2 number, since 2×1551271067² = 4812883846622636978, which contains 22 as substring.

Together with 1551271069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1551271061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775635533 + 775635534.

It is an arithmetic number, because the mean of its divisors is an integer number (775635534).

Almost surely, 2^1551271067 is an apocalyptic number.

1551271067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551271067 is an equidigital number, since it uses as much as digits as its factorization.

1551271067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 35.

The square root of 1551271067 is about 39386.1786290572. The cubic root of 1551271067 is about 1157.6107846762.

The spelling of 1551271067 in words is "one billion, five hundred fifty-one million, two hundred seventy-one thousand, sixty-seven".