1521054137 has 2 divisors, whose sum is σ = 1521054138. Its totient is φ = 1521054136.

The previous prime is 1521054103. The next prime is 1521054211. The reversal of 1521054137 is 7314501251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1519752256 + 1301881 = 38984^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 1521054137 - 2²⁰ = 1520005561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1521054637) 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, 760527068 + 760527069.

It is an arithmetic number, because the mean of its divisors is an integer number (760527069).

Almost surely, 2^1521054137 is an apocalyptic number.

It is an amenable number.

1521054137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521054137 is an equidigital number, since it uses as much as digits as its factorization.

1521054137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1521054137 is about 39000.6940579267. The cubic root of 1521054137 is about 1150.0451493301.

Adding to 1521054137 its reverse (7314501251), we get a palindrome (8835555388).

The spelling of 1521054137 in words is "one billion, five hundred twenty-one million, fifty-four thousand, one hundred thirty-seven".