1521054534 has 16 divisors (see below), whose sum is σ = 3124328688. Its totient is φ = 493314912.

The previous prime is 1521054529. The next prime is 1521054539. The reversal of 1521054534 is 4354501251.

It is an interprime number because it is at equal distance from previous prime (1521054529) and next prime (1521054539).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521054539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3425577 + ... + 3426020.

It is an arithmetic number, because the mean of its divisors is an integer number (195270543).

Almost surely, 2^1521054534 is an apocalyptic number.

1521054534 is an abundant number, since it is smaller than the sum of its proper divisors (1603274154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1521054534 is a wasteful number, since it uses less digits than its factorization.

1521054534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851639.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1521054534 is about 39000.6991475794. The cubic root of 1521054534 is about 1150.0452493853.

Adding to 1521054534 its reverse (4354501251), we get a palindrome (5875555785).

The spelling of 1521054534 in words is "one billion, five hundred twenty-one million, fifty-four thousand, five hundred thirty-four".