145195894 has 4 divisors (see below), whose sum is σ = 217793844. Its totient is φ = 72597946.

The previous prime is 145195871. The next prime is 145195903. The reversal of 145195894 is 498591541.

It is a happy number.

145195894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36298972 + ... + 36298975.

It is an arithmetic number, because the mean of its divisors is an integer number (54448461).

Almost surely, 2^145195894 is an apocalyptic number.

145195894 is a deficient number, since it is larger than the sum of its proper divisors (72597950).

145195894 is an equidigital number, since it uses as much as digits as its factorization.

145195894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72597949.

The product of its digits is 259200, while the sum is 46.

The square root of 145195894 is about 12049.7258889985. The cubic root of 145195894 is about 525.5952661536.

The spelling of 145195894 in words is "one hundred forty-five million, one hundred ninety-five thousand, eight hundred ninety-four".