143455540 has 48 divisors (see below), whose sum is σ = 308629440. Its totient is φ = 55996160.

The previous prime is 143455519. The next prime is 143455541. The reversal of 143455540 is 45554341.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143455541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 147255 + ... + 148225.

It is an arithmetic number, because the mean of its divisors is an integer number (6429780).

Almost surely, 2^143455540 is an apocalyptic number.

143455540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143455540 is an abundant number, since it is smaller than the sum of its proper divisors (165173900).

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

143455540 is a wasteful number, since it uses less digits than its factorization.

143455540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 143455540 is about 11977.2926824053. The cubic root of 143455540 is about 523.4868478284.

The spelling of 143455540 in words is "one hundred forty-three million, four hundred fifty-five thousand, five hundred forty".