1521113 has 4 divisors (see below), whose sum is σ = 1659408. Its totient is φ = 1382820.

The previous prime is 1521103. The next prime is 1521119. The reversal of 1521113 is 3111251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1521113 - 2⁶ = 1521049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1521119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69131 + ... + 69152.

It is an arithmetic number, because the mean of its divisors is an integer number (414852).

2^1521113 is an apocalyptic number.

It is an amenable number.

1521113 is a deficient number, since it is larger than the sum of its proper divisors (138295).

1521113 is a wasteful number, since it uses less digits than its factorization.

1521113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138294.

The product of its digits is 30, while the sum is 14.

The square root of 1521113 is about 1233.3340990989. The cubic root of 1521113 is about 115.0059984269.

Adding to 1521113 its reverse (3111251), we get a palindrome (4632364).

The spelling of 1521113 in words is "one million, five hundred twenty-one thousand, one hundred thirteen".