1142530 has 16 divisors (see below), whose sum is σ = 2091384. Its totient is φ = 449280.

The previous prime is 1142509. The next prime is 1142539. The reversal of 1142530 is 352411.

It can be written as a sum of positive squares in 4 ways, for example, as 257049 + 885481 = 507^2 + 941^2 .

It is not an unprimeable number, because it can be changed into a prime (1142539) 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, 327 + ... + 1546.

2^1142530 is an apocalyptic number.

1142530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142530 is a deficient number, since it is larger than the sum of its proper divisors (948854).

1142530 is a wasteful number, since it uses less digits than its factorization.

1142530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1142530 is about 1068.8919496376. The cubic root of 1142530 is about 104.5416147985.

Adding to 1142530 its reverse (352411), we get a palindrome (1494941).

It can be divided in two parts, 114 and 2530, that multiplied together give a triangular number (288420 = T₇₅₉).

The spelling of 1142530 in words is "one million, one hundred forty-two thousand, five hundred thirty".