1551264023 has 2 divisors, whose sum is σ = 1551264024. Its totient is φ = 1551264022.

The previous prime is 1551264017. The next prime is 1551264031. The reversal of 1551264023 is 3204621551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1551264023 - 2⁴ = 1551264007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1551264073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775632011 + 775632012.

It is an arithmetic number, because the mean of its divisors is an integer number (775632012).

Almost surely, 2^1551264023 is an apocalyptic number.

1551264023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551264023 is an equidigital number, since it uses as much as digits as its factorization.

1551264023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1551264023 is about 39386.0892067237. The cubic root of 1551264023 is about 1157.6090325168.

Adding to 1551264023 its reverse (3204621551), we get a palindrome (4755885574).

The spelling of 1551264023 in words is "one billion, five hundred fifty-one million, two hundred sixty-four thousand, twenty-three".