156490133 has 2 divisors, whose sum is σ = 156490134. Its totient is φ = 156490132.

The previous prime is 156490051. The next prime is 156490141. The reversal of 156490133 is 331094651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92121604 + 64368529 = 9598^2 + 8023^2 .

It is an emirp because it is prime and its reverse (331094651) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 156490133 - 2⁸ = 156489877 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156490133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156493133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78245066 + 78245067.

It is an arithmetic number, because the mean of its divisors is an integer number (78245067).

Almost surely, 2^156490133 is an apocalyptic number.

It is an amenable number.

156490133 is a deficient number, since it is larger than the sum of its proper divisors (1).

156490133 is an equidigital number, since it uses as much as digits as its factorization.

156490133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 156490133 is about 12509.6016323463. The cubic root of 156490133 is about 538.8844517405.

The spelling of 156490133 in words is "one hundred fifty-six million, four hundred ninety thousand, one hundred thirty-three".