1530201531 has 16 divisors (see below), whose sum is σ = 2112855840. Its totient is φ = 984472320.

The previous prime is 1530201511. The next prime is 1530201553. The reversal of 1530201531 is 1351020351.

It is not a de Polignac number, because 1530201531 - 2²¹ = 1528104379 is a prime.

It is a super-2 number, since 2×1530201531² = 4683033450949487922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1530201498 and 1530201507.

It is not an unprimeable number, because it can be changed into a prime (1530201511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69186 + ... + 88583.

It is an arithmetic number, because the mean of its divisors is an integer number (132053490).

Almost surely, 2^1530201531 is an apocalyptic number.

1530201531 is a deficient number, since it is larger than the sum of its proper divisors (582654309).

1530201531 is a wasteful number, since it uses less digits than its factorization.

1530201531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157886.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1530201531 is about 39117.7904667429. The cubic root of 1530201531 is about 1152.3459435872.

Adding to 1530201531 its reverse (1351020351), we get a palindrome (2881221882).

The spelling of 1530201531 in words is "one billion, five hundred thirty million, two hundred one thousand, five hundred thirty-one".