153789947 has 2 divisors, whose sum is σ = 153789948. Its totient is φ = 153789946.

The previous prime is 153789913. The next prime is 153790073. The reversal of 153789947 is 749987351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 153789947 - 2¹² = 153785851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (153783947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76894973 + 76894974.

It is an arithmetic number, because the mean of its divisors is an integer number (76894974).

Almost surely, 2^153789947 is an apocalyptic number.

153789947 is a deficient number, since it is larger than the sum of its proper divisors (1).

153789947 is an equidigital number, since it uses as much as digits as its factorization.

153789947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 153789947 is about 12401.2074815318. The cubic root of 153789947 is about 535.7670274287.

The spelling of 153789947 in words is "one hundred fifty-three million, seven hundred eighty-nine thousand, nine hundred forty-seven".