1521016 has 32 divisors (see below), whose sum is σ = 3299040. Its totient is φ = 643968.

The previous prime is 1521011. The next prime is 1521017. The reversal of 1521016 is 6101251.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521011) 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, 8706 + ... + 8878.

It is an arithmetic number, because the mean of its divisors is an integer number (103095).

2^1521016 is an apocalyptic number.

It is an amenable number.

1521016 is an abundant number, since it is smaller than the sum of its proper divisors (1778024).

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

1521016 is a wasteful number, since it uses less digits than its factorization.

1521016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1521016 is about 1233.2947741720. The cubic root of 1521016 is about 115.0035537654.

Adding to 1521016 its reverse (6101251), we get a palindrome (7622267).

The spelling of 1521016 in words is "one million, five hundred twenty-one thousand, sixteen".