145045093 has 8 divisors (see below), whose sum is σ = 146331000. Its totient is φ = 143763648.

The previous prime is 145045057. The next prime is 145045099. The reversal of 145045093 is 390540541.

It can be written as a sum of positive squares in 4 ways, for example, as 13300609 + 131744484 = 3647^2 + 11478^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145045093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145045099) 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 7 ways as a sum of consecutive naturals, for example, 104955 + ... + 106327.

It is an arithmetic number, because the mean of its divisors is an integer number (18291375).

Almost surely, 2^145045093 is an apocalyptic number.

It is an amenable number.

145045093 is a deficient number, since it is larger than the sum of its proper divisors (1285907).

145045093 is a wasteful number, since it uses less digits than its factorization.

145045093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 145045093 is about 12043.4668181550. The cubic root of 145045093 is about 525.4132413837.

The spelling of 145045093 in words is "one hundred forty-five million, forty-five thousand, ninety-three".