158471245 has 4 divisors (see below), whose sum is σ = 190165500. Its totient is φ = 126776992.

The previous prime is 158471239. The next prime is 158471249. The reversal of 158471245 is 542174851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542174851 = 157 ⋅3453343.

It can be written as a sum of positive squares in 2 ways, for example, as 88397604 + 70073641 = 9402^2 + 8371^2 .

It is a cyclic number.

It is not a de Polignac number, because 158471245 - 2⁵ = 158471213 is a prime.

It is a super-2 number, since 2×158471245² = 50226270983700050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158471249) 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, 15847120 + ... + 15847129.

It is an arithmetic number, because the mean of its divisors is an integer number (47541375).

Almost surely, 2^158471245 is an apocalyptic number.

It is an amenable number.

158471245 is a deficient number, since it is larger than the sum of its proper divisors (31694255).

158471245 is an equidigital number, since it uses as much as digits as its factorization.

158471245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31694254.

The product of its digits is 44800, while the sum is 37.

The square root of 158471245 is about 12588.5362532742. The cubic root of 158471245 is about 541.1489539655.

The spelling of 158471245 in words is "one hundred fifty-eight million, four hundred seventy-one thousand, two hundred forty-five".