158368445 has 16 divisors (see below), whose sum is σ = 195371568. Its totient is φ = 123164160.

The previous prime is 158368433. The next prime is 158368459. The reversal of 158368445 is 544863851.

It can be written as a sum of positive squares in 8 ways, for example, as 19175641 + 139192804 = 4379^2 + 11798^2 .

It is not a de Polignac number, because 158368445 - 2⁶ = 158368381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158368396 and 158368405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63767 + ... + 66203.

It is an arithmetic number, because the mean of its divisors is an integer number (12210723).

Almost surely, 2^158368445 is an apocalyptic number.

It is an amenable number.

158368445 is a deficient number, since it is larger than the sum of its proper divisors (37003123).

158368445 is a wasteful number, since it uses less digits than its factorization.

158368445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800.

The product of its digits is 460800, while the sum is 44.

The square root of 158368445 is about 12584.4525109359. The cubic root of 158368445 is about 541.0319145496.

The spelling of 158368445 in words is "one hundred fifty-eight million, three hundred sixty-eight thousand, four hundred forty-five".