1521164027 has 2 divisors, whose sum is σ = 1521164028. Its totient is φ = 1521164026.

The previous prime is 1521164011. The next prime is 1521164053. The reversal of 1521164027 is 7204611251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1521164027 - 2⁴ = 1521164011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1521164527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760582013 + 760582014.

It is an arithmetic number, because the mean of its divisors is an integer number (760582014).

Almost surely, 2^1521164027 is an apocalyptic number.

1521164027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521164027 is an equidigital number, since it uses as much as digits as its factorization.

1521164027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1521164027 is about 39002.1028535642. The cubic root of 1521164027 is about 1150.0728440310.

Adding to 1521164027 its reverse (7204611251), we get a palindrome (8725775278).

The spelling of 1521164027 in words is "one billion, five hundred twenty-one million, one hundred sixty-four thousand, twenty-seven".