156428485 has 8 divisors (see below), whose sum is σ = 188383896. Its totient is φ = 124696320.

The previous prime is 156428483. The next prime is 156428491. The reversal of 156428485 is 584824651.

It can be written as a sum of positive squares in 4 ways, for example, as 19210689 + 137217796 = 4383^2 + 11714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156428485 - 2¹ = 156428483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156428483) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54264 + ... + 57073.

It is an arithmetic number, because the mean of its divisors is an integer number (23547987).

Almost surely, 2^156428485 is an apocalyptic number.

It is an amenable number.

156428485 is a deficient number, since it is larger than the sum of its proper divisors (31955411).

156428485 is a wasteful number, since it uses less digits than its factorization.

156428485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111623.

The product of its digits is 307200, while the sum is 43.

The square root of 156428485 is about 12507.1373623224. The cubic root of 156428485 is about 538.8136794147.

The spelling of 156428485 in words is "one hundred fifty-six million, four hundred twenty-eight thousand, four hundred eighty-five".