1531532230 has 16 divisors (see below), whose sum is σ = 2797904880. Its totient is φ = 603469152.

The previous prime is 1531532173. The next prime is 1531532237. The reversal of 1531532230 is 322351351.

It is a junction number, because it is equal to n+sod(n) for n = 1531532195 and 1531532204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1531532237) 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, 1142265 + ... + 1143604.

It is an arithmetic number, because the mean of its divisors is an integer number (174869055).

Almost surely, 2^1531532230 is an apocalyptic number.

1531532230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1531532230 is a deficient number, since it is larger than the sum of its proper divisors (1266372650).

1531532230 is a wasteful number, since it uses less digits than its factorization.

1531532230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285943.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1531532230 is about 39134.7956427525. The cubic root of 1531532230 is about 1152.6798824568.

Adding to 1531532230 its reverse (322351351), we get a palindrome (1853883581).

The spelling of 1531532230 in words is "one billion, five hundred thirty-one million, five hundred thirty-two thousand, two hundred thirty".