1322145551 has 2 divisors, whose sum is σ = 1322145552. Its totient is φ = 1322145550.

The previous prime is 1322145529. The next prime is 1322145557. The reversal of 1322145551 is 1555412231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1322145551 - 2¹⁴ = 1322129167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322145557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661072775 + 661072776.

It is an arithmetic number, because the mean of its divisors is an integer number (661072776).

Almost surely, 2^1322145551 is an apocalyptic number.

1322145551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322145551 is an equidigital number, since it uses as much as digits as its factorization.

1322145551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6000, while the sum is 29.

The square root of 1322145551 is about 36361.3194342560. The cubic root of 1322145551 is about 1097.5553287694. Note that the first 3 decimals are identical.

Adding to 1322145551 its reverse (1555412231), we get a palindrome (2877557782).

The spelling of 1322145551 in words is "one billion, three hundred twenty-two million, one hundred forty-five thousand, five hundred fifty-one".