145194278 has 8 divisors (see below), whose sum is σ = 217942920. Its totient is φ = 72546640.

The previous prime is 145194277. The next prime is 145194311. The reversal of 145194278 is 872491541.

145194278 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145194277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21548 + ... + 27471.

It is an arithmetic number, because the mean of its divisors is an integer number (27242865).

Almost surely, 2^145194278 is an apocalyptic number.

145194278 is a deficient number, since it is larger than the sum of its proper divisors (72748642).

145194278 is a wasteful number, since it uses less digits than its factorization.

145194278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50502.

The product of its digits is 80640, while the sum is 41.

The square root of 145194278 is about 12049.6588333446. The cubic root of 145194278 is about 525.5933162245.

The spelling of 145194278 in words is "one hundred forty-five million, one hundred ninety-four thousand, two hundred seventy-eight".