145094494 has 4 divisors (see below), whose sum is σ = 217641744. Its totient is φ = 72547246.

The previous prime is 145094491. The next prime is 145094503. The reversal of 145094494 is 494490541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494490541 = 233 ⋅2122277.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145094491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36273622 + ... + 36273625.

It is an arithmetic number, because the mean of its divisors is an integer number (54410436).

Almost surely, 2^145094494 is an apocalyptic number.

145094494 is a deficient number, since it is larger than the sum of its proper divisors (72547250).

145094494 is an equidigital number, since it uses as much as digits as its factorization.

145094494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72547249.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 145094494 is about 12045.5175895434. The cubic root of 145094494 is about 525.4728848890.

The spelling of 145094494 in words is "one hundred forty-five million, ninety-four thousand, four hundred ninety-four".