1053201521 has 16 divisors (see below), whose sum is σ = 1134470400. Its totient is φ = 974602368.

The previous prime is 1053201511. The next prime is 1053201547. The reversal of 1053201521 is 1251023501.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053201521 is a prime.

It is a super-2 number, since 2×1053201521² = 2218466887673426882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1053201493 and 1053201502.

It is not an unprimeable number, because it can be changed into a prime (1053201511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653765 + ... + 655373.

It is an arithmetic number, because the mean of its divisors is an integer number (70904400).

Almost surely, 2^1053201521 is an apocalyptic number.

It is an amenable number.

1053201521 is a deficient number, since it is larger than the sum of its proper divisors (81268879).

1053201521 is a wasteful number, since it uses less digits than its factorization.

1053201521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1053201521 is about 32453.0664344681. The cubic root of 1053201521 is about 1017.4283290799.

The spelling of 1053201521 in words is "one billion, fifty-three million, two hundred one thousand, five hundred twenty-one".