145104394 has 8 divisors (see below), whose sum is σ = 217788228. Its totient is φ = 72508320.

The previous prime is 145104383. The next prime is 145104431. The reversal of 145104394 is 493401541.

It can be written as a sum of positive squares in 2 ways, for example, as 144841225 + 263169 = 12035^2 + 513^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17637 + ... + 24520.

Almost surely, 2^145104394 is an apocalyptic number.

145104394 is a deficient number, since it is larger than the sum of its proper divisors (72683834).

145104394 is a wasteful number, since it uses less digits than its factorization.

145104394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43880.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 145104394 is about 12045.9285237793. The cubic root of 145104394 is about 525.4848358668.

The spelling of 145104394 in words is "one hundred forty-five million, one hundred four thousand, three hundred ninety-four".