151306394 has 8 divisors (see below), whose sum is σ = 233093748. Its totient is φ = 73608480.

The previous prime is 151306343. The next prime is 151306399. The reversal of 151306394 is 493603151.

It can be written as a sum of positive squares in 2 ways, for example, as 126675025 + 24631369 = 11255^2 + 4963^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 151306394.

It is not an unprimeable number, because it can be changed into a prime (151306399) 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, 1022267 + ... + 1022414.

Almost surely, 2^151306394 is an apocalyptic number.

151306394 is a deficient number, since it is larger than the sum of its proper divisors (81787354).

151306394 is a wasteful number, since it uses less digits than its factorization.

151306394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044720.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 151306394 is about 12300.6664047116. Note that the first 3 decimals coincide. The cubic root of 151306394 is about 532.8673289678.

The spelling of 151306394 in words is "one hundred fifty-one million, three hundred six thousand, three hundred ninety-four".