145806542 has 8 divisors (see below), whose sum is σ = 249954096. Its totient is φ = 62488512.

The previous prime is 145806517. The next prime is 145806581. The reversal of 145806542 is 245608541.

145806542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 5207363 + ... + 5207390.

It is an arithmetic number, because the mean of its divisors is an integer number (31244262).

Almost surely, 2^145806542 is an apocalyptic number.

145806542 is a deficient number, since it is larger than the sum of its proper divisors (104147554).

145806542 is a wasteful number, since it uses less digits than its factorization.

145806542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414762.

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

The square root of 145806542 is about 12075.0379709548. The cubic root of 145806542 is about 526.3310647458.

The spelling of 145806542 in words is "one hundred forty-five million, eight hundred six thousand, five hundred forty-two".