1521913053 has 8 divisors (see below), whose sum is σ = 2136018400. Its totient is φ = 961208208.

The previous prime is 1521913037. The next prime is 1521913103. The reversal of 1521913053 is 3503191251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1521913053 - 2⁴ = 1521913037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1521913053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521913553) 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, 13350058 + ... + 13350171.

It is an arithmetic number, because the mean of its divisors is an integer number (267002300).

Almost surely, 2^1521913053 is an apocalyptic number.

It is an amenable number.

1521913053 is a deficient number, since it is larger than the sum of its proper divisors (614105347).

1521913053 is a wasteful number, since it uses less digits than its factorization.

1521913053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26700251.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 1521913053 is about 39011.7040514767. The cubic root of 1521913053 is about 1150.2615795639.

The spelling of 1521913053 in words is "one billion, five hundred twenty-one million, nine hundred thirteen thousand, fifty-three".