156225143 has 2 divisors, whose sum is σ = 156225144. Its totient is φ = 156225142.

The previous prime is 156225127. The next prime is 156225169. The reversal of 156225143 is 341522651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156225143 - 2⁴ = 156225127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156228143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78112571 + 78112572.

It is an arithmetic number, because the mean of its divisors is an integer number (78112572).

Almost surely, 2^156225143 is an apocalyptic number.

156225143 is a deficient number, since it is larger than the sum of its proper divisors (1).

156225143 is an equidigital number, since it uses as much as digits as its factorization.

156225143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 156225143 is about 12499.0056804531. The cubic root of 156225143 is about 538.5801095090.

Adding to 156225143 its reverse (341522651), we get a palindrome (497747794).

The spelling of 156225143 in words is "one hundred fifty-six million, two hundred twenty-five thousand, one hundred forty-three".