156207133 has 2 divisors, whose sum is σ = 156207134. Its totient is φ = 156207132.

The previous prime is 156207131. The next prime is 156207143. The reversal of 156207133 is 331702651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104898564 + 51308569 = 10242^2 + 7163^2 .

It is a cyclic number.

It is not a de Polignac number, because 156207133 - 2¹ = 156207131 is a prime.

Together with 156207131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156207131) 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 as a sum of consecutive naturals, namely, 78103566 + 78103567.

It is an arithmetic number, because the mean of its divisors is an integer number (78103567).

Almost surely, 2^156207133 is an apocalyptic number.

It is an amenable number.

156207133 is a deficient number, since it is larger than the sum of its proper divisors (1).

156207133 is an equidigital number, since it uses as much as digits as its factorization.

156207133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 156207133 is about 12498.2852023788. The cubic root of 156207133 is about 538.5594124552.

Adding to 156207133 its reverse (331702651), we get a palindrome (487909784).

The spelling of 156207133 in words is "one hundred fifty-six million, two hundred seven thousand, one hundred thirty-three".