145815443 has 8 divisors (see below), whose sum is σ = 162519120. Its totient is φ = 130014720.

The previous prime is 145815433. The next prime is 145815487. The reversal of 145815443 is 344518541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145815443 - 2⁶ = 145815379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145815403) 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, 225398 + ... + 226043.

It is an arithmetic number, because the mean of its divisors is an integer number (20314890).

Almost surely, 2^145815443 is an apocalyptic number.

145815443 is a deficient number, since it is larger than the sum of its proper divisors (16703677).

145815443 is a wasteful number, since it uses less digits than its factorization.

145815443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451477.

The product of its digits is 38400, while the sum is 35.

The square root of 145815443 is about 12075.4065355995. The cubic root of 145815443 is about 526.3417747762.

The spelling of 145815443 in words is "one hundred forty-five million, eight hundred fifteen thousand, four hundred forty-three".