153381 has 16 divisors (see below), whose sum is σ = 221760. Its totient is φ = 94080.

The previous prime is 153379. The next prime is 153407. The reversal of 153381 is 183351.

It is a happy number.

153381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

153381 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 153381 - 2¹ = 153379 is a prime.

It is a super-2 number, since 2×153381² = 47051462322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3546 + ... + 3588.

It is an arithmetic number, because the mean of its divisors is an integer number (13860).

2¹⁵³³⁸¹ is an apocalyptic number.

It is an amenable number.

153381 is a deficient number, since it is larger than the sum of its proper divisors (68379).

153381 is a wasteful number, since it uses less digits than its factorization.

153381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116.

The product of its digits is 360, while the sum is 21.

The square root of 153381 is about 391.6388642615. The cubic root of 153381 is about 53.5291715018.

The spelling of 153381 in words is "one hundred fifty-three thousand, three hundred eighty-one".