158074645 has 4 divisors (see below), whose sum is σ = 189689580. Its totient is φ = 126459712.

The previous prime is 158074643. The next prime is 158074663. The reversal of 158074645 is 546470851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90801841 + 67272804 = 9529^2 + 8202^2 .

It is a cyclic number.

It is not a de Polignac number, because 158074645 - 2¹ = 158074643 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 158074598 and 158074607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158074643) 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, 15807460 + ... + 15807469.

It is an arithmetic number, because the mean of its divisors is an integer number (47422395).

Almost surely, 2^158074645 is an apocalyptic number.

It is an amenable number.

158074645 is a deficient number, since it is larger than the sum of its proper divisors (31614935).

158074645 is an equidigital number, since it uses as much as digits as its factorization.

158074645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31614934.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 158074645 is about 12572.7739580412. The cubic root of 158074645 is about 540.6971391590.

The spelling of 158074645 in words is "one hundred fifty-eight million, seventy-four thousand, six hundred forty-five".