1530369 has 12 divisors (see below), whose sum is σ = 2234596. Its totient is φ = 1009152.

The previous prime is 1530349. The next prime is 1530409. The reversal of 1530369 is 9630351.

It can be written as a sum of positive squares in 2 ways, for example, as 291600 + 1238769 = 540^2 + 1113^2 .

It is not a de Polignac number, because 1530369 - 2¹¹ = 1528321 is a prime.

It is a super-2 number, since 2×1530369² = 4684058552322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1530329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4 + ... + 1749.

2^1530369 is an apocalyptic number.

It is an amenable number.

1530369 is a deficient number, since it is larger than the sum of its proper divisors (704227).

1530369 is a wasteful number, since it uses less digits than its factorization.

1530369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 1853 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 1530369 is about 1237.0808381023. The cubic root of 1530369 is about 115.2387980574.

It can be divided in two parts, 15 and 30369, that multiplied together give a triangular number (455535 = T₉₅₄).

The spelling of 1530369 in words is "one million, five hundred thirty thousand, three hundred sixty-nine".