145142530 has 32 divisors (see below), whose sum is σ = 282273264. Its totient is φ = 53415936.

The previous prime is 145142519. The next prime is 145142551. The reversal of 145142530 is 35241541.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 53538489 + 91604041 = 7317^2 + 9571^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145142495 and 145142504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42154 + ... + 45466.

Almost surely, 2^145142530 is an apocalyptic number.

145142530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145142530 is a deficient number, since it is larger than the sum of its proper divisors (137130734).

145142530 is a wasteful number, since it uses less digits than its factorization.

145142530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145142530 is about 12047.5113612729. The cubic root of 145142530 is about 525.5308674027.

The spelling of 145142530 in words is "one hundred forty-five million, one hundred forty-two thousand, five hundred thirty".