153478394 has 8 divisors (see below), whose sum is σ = 230810580. Its totient is φ = 76541536.

The previous prime is 153478387. The next prime is 153478417. The reversal of 153478394 is 493874351.

It can be written as a sum of positive squares in 2 ways, for example, as 148474225 + 5004169 = 12185^2 + 2237^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97859 + ... + 99414.

Almost surely, 2^153478394 is an apocalyptic number.

153478394 is a deficient number, since it is larger than the sum of its proper divisors (77332186).

153478394 is a wasteful number, since it uses less digits than its factorization.

153478394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197664.

The product of its digits is 362880, while the sum is 44.

The square root of 153478394 is about 12388.6397154813. The cubic root of 153478394 is about 535.4049910444.

The spelling of 153478394 in words is "one hundred fifty-three million, four hundred seventy-eight thousand, three hundred ninety-four".