158317434 has 48 divisors (see below), whose sum is σ = 386290944. Its totient is φ = 46425600.

The previous prime is 158317429. The next prime is 158317457. The reversal of 158317434 is 434713851.

It is a happy number.

158317434 is a `hidden beast` number, since 1 + 583 + 1 + 74 + 3 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6759 + ... + 19034.

It is an arithmetic number, because the mean of its divisors is an integer number (8047728).

Almost surely, 2^158317434 is an apocalyptic number.

158317434 is an abundant number, since it is smaller than the sum of its proper divisors (227973510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158317434 is a wasteful number, since it uses less digits than its factorization.

158317434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25843 (or 25840 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 158317434 is about 12582.4256008132. The cubic root of 158317434 is about 540.9738189218.

The spelling of 158317434 in words is "one hundred fifty-eight million, three hundred seventeen thousand, four hundred thirty-four".