145089093 has 16 divisors (see below), whose sum is σ = 195295680. Its totient is φ = 95809536.

The previous prime is 145089089. The next prime is 145089163. The reversal of 145089093 is 390980541.

It is not a de Polignac number, because 145089093 - 2² = 145089089 is a prime.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145089053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174603 + ... + 175431.

It is an arithmetic number, because the mean of its divisors is an integer number (12205980).

Almost surely, 2^145089093 is an apocalyptic number.

It is an amenable number.

145089093 is a deficient number, since it is larger than the sum of its proper divisors (50206587).

145089093 is a wasteful number, since it uses less digits than its factorization.

145089093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 145089093 is about 12045.2933961776. The cubic root of 145089093 is about 525.4663647374.

The spelling of 145089093 in words is "one hundred forty-five million, eighty-nine thousand, ninety-three".