1531130 has 8 divisors (see below), whose sum is σ = 2756052. Its totient is φ = 612448.

The previous prime is 1531129. The next prime is 1531147. The reversal of 1531130 is 311351.

It can be written as a sum of positive squares in 2 ways, for example, as 1530169 + 961 = 1237^2 + 31^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76547 + ... + 76566.

2^1531130 is an apocalyptic number.

1531130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1531130 is a deficient number, since it is larger than the sum of its proper divisors (1224922).

1531130 is a wasteful number, since it uses less digits than its factorization.

1531130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153120.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 1531130 is about 1237.3883788043. The cubic root of 1531130 is about 115.2578963256.

Adding to 1531130 its reverse (311351), we get a palindrome (1842481).

It can be divided in two parts, 1531 and 130, that added together give a palindrome (1661).

The spelling of 1531130 in words is "one million, five hundred thirty-one thousand, one hundred thirty".