156042113 has 2 divisors, whose sum is σ = 156042114. Its totient is φ = 156042112.

The previous prime is 156042109. The next prime is 156042137. The reversal of 156042113 is 311240651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109160704 + 46881409 = 10448^2 + 6847^2 .

It is a cyclic number.

It is not a de Polignac number, because 156042113 - 2² = 156042109 is a prime.

It is not a weakly prime, because it can be changed into another prime (156042163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78021056 + 78021057.

It is an arithmetic number, because the mean of its divisors is an integer number (78021057).

Almost surely, 2^156042113 is an apocalyptic number.

It is an amenable number.

156042113 is a deficient number, since it is larger than the sum of its proper divisors (1).

156042113 is an equidigital number, since it uses as much as digits as its factorization.

156042113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 156042113 is about 12491.6817522702. The cubic root of 156042113 is about 538.3696977121.

Adding to 156042113 its reverse (311240651), we get a palindrome (467282764).

The spelling of 156042113 in words is "one hundred fifty-six million, forty-two thousand, one hundred thirteen".