1521364 has 24 divisors (see below), whose sum is σ = 3037608. Its totient is φ = 660480.

The previous prime is 1521361. The next prime is 1521371. The reversal of 1521364 is 4631251.

It can be written as a sum of positive squares in 4 ways, for example, as 311364 + 1210000 = 558^2 + 1100^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521361) 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, 24 + ... + 1744.

It is an arithmetic number, because the mean of its divisors is an integer number (126567).

2^1521364 is an apocalyptic number.

It is an amenable number.

1521364 is a deficient number, since it is larger than the sum of its proper divisors (1516244).

1521364 is a wasteful number, since it uses less digits than its factorization.

1521364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1753 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1521364 is about 1233.4358515950. The cubic root of 1521364 is about 115.0123238211.

The spelling of 1521364 in words is "one million, five hundred twenty-one thousand, three hundred sixty-four".