1530431 has 16 divisors (see below), whose sum is σ = 1896960. Its totient is φ = 1205280.

The previous prime is 1530409. The next prime is 1530457. The reversal of 1530431 is 1340351.

It is a cyclic number.

It is not a de Polignac number, because 1530431 - 2¹⁸ = 1268287 is a prime.

It is a super-2 number, since 2×1530431² = 4684438091522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530131) 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, 4766 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (118560).

2^1530431 is an apocalyptic number.

1530431 is a deficient number, since it is larger than the sum of its proper divisors (366529).

1530431 is a wasteful number, since it uses less digits than its factorization.

1530431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1530431 is about 1237.1058968415. The cubic root of 1530431 is about 115.2403542635.

Adding to 1530431 its reverse (1340351), we get a palindrome (2870782).

The spelling of 1530431 in words is "one million, five hundred thirty thousand, four hundred thirty-one".