158074445 has 4 divisors (see below), whose sum is σ = 189689340. Its totient is φ = 126459552.

The previous prime is 158074403. The next prime is 158074451. The reversal of 158074445 is 544470851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544470851 = 6451 ⋅84401.

It can be written as a sum of positive squares in 2 ways, for example, as 74425129 + 83649316 = 8627^2 + 9146^2 .

It is a cyclic number.

It is not a de Polignac number, because 158074445 - 2¹² = 158070349 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 158074399 and 158074408.

It is a congruent number.

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, 15807440 + ... + 15807449.

It is an arithmetic number, because the mean of its divisors is an integer number (47422335).

Almost surely, 2^158074445 is an apocalyptic number.

It is an amenable number.

158074445 is a deficient number, since it is larger than the sum of its proper divisors (31614895).

158074445 is an equidigital number, since it uses as much as digits as its factorization.

158074445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31614894.

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 158074445 is about 12572.7660043445. The cubic root of 158074445 is about 540.6969111244.

The spelling of 158074445 in words is "one hundred fifty-eight million, seventy-four thousand, four hundred forty-five".