156873047 has 2 divisors, whose sum is σ = 156873048. Its totient is φ = 156873046.

The previous prime is 156873043. The next prime is 156873077. The reversal of 156873047 is 740378651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156873047 - 2² = 156873043 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 156872995 and 156873013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156873043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78436523 + 78436524.

It is an arithmetic number, because the mean of its divisors is an integer number (78436524).

Almost surely, 2^156873047 is an apocalyptic number.

156873047 is a deficient number, since it is larger than the sum of its proper divisors (1).

156873047 is an equidigital number, since it uses as much as digits as its factorization.

156873047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 156873047 is about 12524.8970854055. The cubic root of 156873047 is about 539.3236238961.

The spelling of 156873047 in words is "one hundred fifty-six million, eight hundred seventy-three thousand, forty-seven".