156448885 has 4 divisors (see below), whose sum is σ = 187738668. Its totient is φ = 125159104.

The previous prime is 156448871. The next prime is 156448891. The reversal of 156448885 is 588844651.

156448885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588844651 = 61 ⋅9653191.

It can be written as a sum of positive squares in 2 ways, for example, as 41036836 + 115412049 = 6406^2 + 10743^2 .

It is a cyclic number.

It is not a de Polignac number, because 156448885 - 2¹³ = 156440693 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 15644884 + ... + 15644893.

It is an arithmetic number, because the mean of its divisors is an integer number (46934667).

Almost surely, 2^156448885 is an apocalyptic number.

It is an amenable number.

156448885 is a deficient number, since it is larger than the sum of its proper divisors (31289783).

156448885 is an equidigital number, since it uses as much as digits as its factorization.

156448885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31289782.

The product of its digits is 1228800, while the sum is 49.

The square root of 156448885 is about 12507.9528700743. The cubic root of 156448885 is about 538.8371008124.

The spelling of 156448885 in words is "one hundred fifty-six million, four hundred forty-eight thousand, eight hundred eighty-five".