145530531140 has 12 divisors (see below), whose sum is σ = 305614115436. Its totient is φ = 58212212448.

The previous prime is 145530531077. The next prime is 145530531169. The reversal of 145530531140 is 41135035541.

It can be written as a sum of positive squares in 2 ways, for example, as 90870896704 + 54659634436 = 301448^2 + 233794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145530531097 and 145530531106.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3638263259 + ... + 3638263298.

It is an arithmetic number, because the mean of its divisors is an integer number (25467842953).

Almost surely, 2^145530531140 is an apocalyptic number.

145530531140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145530531140 is an abundant number, since it is smaller than the sum of its proper divisors (160083584296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145530531140 is a wasteful number, since it uses less digits than its factorization.

145530531140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276526566 (or 7276526564 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 145530531140 its reverse (41135035541), we get a palindrome (186665566681).

The spelling of 145530531140 in words is "one hundred forty-five billion, five hundred thirty million, five hundred thirty-one thousand, one hundred forty".