158449545 has 12 divisors (see below), whose sum is σ = 274645956. Its totient is φ = 84506400.

The previous prime is 158449519. The next prime is 158449561. The reversal of 158449545 is 545944851.

158449545 is a `hidden beast` number, since 158 + 4 + 495 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 121616784 + 36832761 = 11028^2 + 6069^2 .

It is not a de Polignac number, because 158449545 - 2⁸ = 158449289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3521101 = 158449545 / (1 + 5 + 8 + 4 + 4 + 9 + 5 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 158449545.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1760506 + ... + 1760595.

It is an arithmetic number, because the mean of its divisors is an integer number (22887163).

Almost surely, 2^158449545 is an apocalyptic number.

158449545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158449545 is a deficient number, since it is larger than the sum of its proper divisors (116196411).

158449545 is a wasteful number, since it uses less digits than its factorization.

158449545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521112 (or 3521109 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 158449545 is about 12587.6743284850. The cubic root of 158449545 is about 541.1242523899.

The spelling of 158449545 in words is "one hundred fifty-eight million, four hundred forty-nine thousand, five hundred forty-five".