153947 has 2 divisors, whose sum is σ = 153948. Its totient is φ = 153946.

The previous prime is 153941. The next prime is 153949. The reversal of 153947 is 749351.

It is a strong prime.

It is an emirp because it is prime and its reverse (749351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153947 - 2¹⁶ = 88411 is a prime.

Together with 153949, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 153947.

It is not a weakly prime, because it can be changed into another prime (153941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76973 + 76974.

It is an arithmetic number, because the mean of its divisors is an integer number (76974).

2¹⁵³⁹⁴⁷ is an apocalyptic number.

153947 is a deficient number, since it is larger than the sum of its proper divisors (1).

153947 is an equidigital number, since it uses as much as digits as its factorization.

153947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 153947 is about 392.3608033430. The cubic root of 153947 is about 53.5949343620.

The spelling of 153947 in words is "one hundred fifty-three thousand, nine hundred forty-seven".