1322871551 has 2 divisors, whose sum is σ = 1322871552. Its totient is φ = 1322871550.

The previous prime is 1322871533. The next prime is 1322871577. The reversal of 1322871551 is 1551782231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322871551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322871521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661435775 + 661435776.

It is an arithmetic number, because the mean of its divisors is an integer number (661435776).

Almost surely, 2^1322871551 is an apocalyptic number.

1322871551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322871551 is an equidigital number, since it uses as much as digits as its factorization.

1322871551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 1322871551 is about 36371.3012002595. The cubic root of 1322871551 is about 1097.7561839539.

The spelling of 1322871551 in words is "one billion, three hundred twenty-two million, eight hundred seventy-one thousand, five hundred fifty-one".