156740241 has 16 divisors (see below), whose sum is σ = 239044608. Its totient is φ = 89490000.

The previous prime is 156740237. The next prime is 156740267. The reversal of 156740241 is 142047651.

156740241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156740241 - 2² = 156740237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 156740199 and 156740208.

It is not an unprimeable number, because it can be changed into a prime (156740231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30616 + ... + 35366.

It is an arithmetic number, because the mean of its divisors is an integer number (14940288).

Almost surely, 2^156740241 is an apocalyptic number.

It is an amenable number.

156740241 is a deficient number, since it is larger than the sum of its proper divisors (82304367).

156740241 is a wasteful number, since it uses less digits than its factorization.

156740241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 156740241 is about 12519.5942825636. The cubic root of 156740241 is about 539.1713869199.

Adding to 156740241 its reverse (142047651), we get a palindrome (298787892).

The spelling of 156740241 in words is "one hundred fifty-six million, seven hundred forty thousand, two hundred forty-one".