145103193 has 6 divisors (see below), whose sum is σ = 209593514. Its totient is φ = 96735456.

The previous prime is 145103191. The next prime is 145103213. The reversal of 145103193 is 391301541.

It can be written as a sum of positive squares in only one way, i.e., 121947849 + 23155344 = 11043^2 + 4812^2 .

It is not a de Polignac number, because 145103193 - 2¹ = 145103191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145103191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8061280 + ... + 8061297.

Almost surely, 2^145103193 is an apocalyptic number.

It is an amenable number.

145103193 is a deficient number, since it is larger than the sum of its proper divisors (64490321).

145103193 is a wasteful number, since it uses less digits than its factorization.

145103193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16122583 (or 16122580 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 145103193 is about 12045.8786728076. The cubic root of 145103193 is about 525.4833860852.

The spelling of 145103193 in words is "one hundred forty-five million, one hundred three thousand, one hundred ninety-three".