153247 has 2 divisors, whose sum is σ = 153248. Its totient is φ = 153246.

The previous prime is 153191. The next prime is 153259. The reversal of 153247 is 742351.

It is a strong prime.

It is an emirp because it is prime and its reverse (742351) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153247 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76623 + 76624.

It is an arithmetic number, because the mean of its divisors is an integer number (76624).

2¹⁵³²⁴⁷ is an apocalyptic number.

153247 is a deficient number, since it is larger than the sum of its proper divisors (1).

153247 is an equidigital number, since it uses as much as digits as its factorization.

153247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 22.

The square root of 153247 is about 391.4677509068. The cubic root of 153247 is about 53.5135785256.

Adding to 153247 its reverse (742351), we get a palindrome (895598).

It can be divided in two parts, 153 and 247, that added together give a square (400 = 20²).

The spelling of 153247 in words is "one hundred fifty-three thousand, two hundred forty-seven".