145854539 has 8 divisors (see below), whose sum is σ = 146952672. Its totient is φ = 144760320.

The previous prime is 145854503. The next prime is 145854559. The reversal of 145854539 is 935458541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145854539 - 2²⁰ = 144805963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145854539.

It is not an unprimeable number, because it can be changed into a prime (145854559) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 140954 + ... + 141984.

It is an arithmetic number, because the mean of its divisors is an integer number (18369084).

Almost surely, 2^145854539 is an apocalyptic number.

145854539 is a deficient number, since it is larger than the sum of its proper divisors (1098133).

145854539 is a wasteful number, since it uses less digits than its factorization.

145854539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957.

The product of its digits is 432000, while the sum is 44.

The square root of 145854539 is about 12077.0252545898. The cubic root of 145854539 is about 526.3888114475.

The spelling of 145854539 in words is "one hundred forty-five million, eight hundred fifty-four thousand, five hundred thirty-nine".