145143140 has 12 divisors (see below), whose sum is σ = 304800636. Its totient is φ = 58057248.

The previous prime is 145143139. The next prime is 145143181. The reversal of 145143140 is 41341541.

It can be written as a sum of positive squares in 2 ways, for example, as 43375396 + 101767744 = 6586^2 + 10088^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3628559 + ... + 3628598.

It is an arithmetic number, because the mean of its divisors is an integer number (25400053).

Almost surely, 2^145143140 is an apocalyptic number.

145143140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145143140 is an abundant number, since it is smaller than the sum of its proper divisors (159657496).

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

145143140 is a wasteful number, since it uses less digits than its factorization.

145143140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257166 (or 7257164 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 145143140 is about 12047.5366776781. The cubic root of 145143140 is about 525.5316036293.

Adding to 145143140 its reverse (41341541), we get a palindrome (186484681).

The spelling of 145143140 in words is "one hundred forty-five million, one hundred forty-three thousand, one hundred forty".