156996349 has 2 divisors, whose sum is σ = 156996350. Its totient is φ = 156996348.

The previous prime is 156996341. The next prime is 156996353. The reversal of 156996349 is 943699651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135559449 + 21436900 = 11643^2 + 4630^2 .

It is a cyclic number.

It is not a de Polignac number, because 156996349 - 2³ = 156996341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 156996296 and 156996305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156996341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78498174 + 78498175.

It is an arithmetic number, because the mean of its divisors is an integer number (78498175).

Almost surely, 2^156996349 is an apocalyptic number.

It is an amenable number.

156996349 is a deficient number, since it is larger than the sum of its proper divisors (1).

156996349 is an equidigital number, since it uses as much as digits as its factorization.

156996349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The square root of 156996349 is about 12529.8183945339. The cubic root of 156996349 is about 539.4648894342.

The spelling of 156996349 in words is "one hundred fifty-six million, nine hundred ninety-six thousand, three hundred forty-nine".