156982645 has 16 divisors (see below), whose sum is σ = 193585392. Its totient is φ = 122135040.

The previous prime is 156982627. The next prime is 156982649. The reversal of 156982645 is 546289651.

It can be written as a sum of positive squares in 8 ways, for example, as 15824484 + 141158161 = 3978^2 + 11881^2 .

It is not a de Polignac number, because 156982645 - 2¹³ = 156974453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156982595 and 156982604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156982649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75439 + ... + 77491.

It is an arithmetic number, because the mean of its divisors is an integer number (12099087).

Almost surely, 2^156982645 is an apocalyptic number.

It is an amenable number.

156982645 is a deficient number, since it is larger than the sum of its proper divisors (36602747).

156982645 is a wasteful number, since it uses less digits than its factorization.

156982645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its digits is 518400, while the sum is 46.

The square root of 156982645 is about 12529.2715271080. The cubic root of 156982645 is about 539.4491925894.

The spelling of 156982645 in words is "one hundred fifty-six million, nine hundred eighty-two thousand, six hundred forty-five".