153601 has 4 divisors (see below), whose sum is σ = 175552. Its totient is φ = 131652.

The previous prime is 153589. The next prime is 153607. The reversal of 153601 is 106351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106351 = 7 ⋅15193.

It is a cyclic number.

It is not a de Polignac number, because 153601 - 2⁹ = 153089 is a prime.

It is a Duffinian number.

153601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (153607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10965 + ... + 10978.

It is an arithmetic number, because the mean of its divisors is an integer number (43888).

It is a Proth number, since it is equal to 75 ⋅ 2¹¹ + 1 and 75 < 2¹¹.

2¹⁵³⁶⁰¹ is an apocalyptic number.

It is an amenable number.

153601 is a deficient number, since it is larger than the sum of its proper divisors (21951).

153601 is an equidigital number, since it uses as much as digits as its factorization.

153601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21950.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 153601 is about 391.9196346191. The cubic root of 153601 is about 53.5547522273.

Adding to 153601 its reverse (106351), we get a palindrome (259952).

The spelling of 153601 in words is "one hundred fifty-three thousand, six hundred one".