145103194 has 16 divisors (see below), whose sum is σ = 235363968. Its totient is φ = 66830272.

The previous prime is 145103191. The next prime is 145103213. The reversal of 145103194 is 491301541.

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 7 ways as a sum of consecutive naturals, for example, 43804 + ... + 46999.

It is an arithmetic number, because the mean of its divisors is an integer number (14710248).

Almost surely, 2^145103194 is an apocalyptic number.

145103194 is a deficient number, since it is larger than the sum of its proper divisors (90260774).

145103194 is a wasteful number, since it uses less digits than its factorization.

145103194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90869.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 145103194 is about 12045.8787143155. The cubic root of 145103194 is about 525.4833872924.

The spelling of 145103194 in words is "one hundred forty-five million, one hundred three thousand, one hundred ninety-four".