153858 has 8 divisors (see below), whose sum is σ = 307728. Its totient is φ = 51284.

The previous prime is 153841. The next prime is 153871. The reversal of 153858 is 858351.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

153858 is an admirable number.

It is an unprimeable number.

153858 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12816 + ... + 12827.

It is an arithmetic number, because the mean of its divisors is an integer number (38466).

2¹⁵³⁸⁵⁸ is an apocalyptic number.

153858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153858 is a wasteful number, since it uses less digits than its factorization.

153858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25648.

The product of its digits is 4800, while the sum is 30.

The square root of 153858 is about 392.2473709281. The cubic root of 153858 is about 53.5846042513.

It can be divided in two parts, 1538 and 58, that added together give a triangular number (1596 = T₅₆).

The spelling of 153858 in words is "one hundred fifty-three thousand, eight hundred fifty-eight".