157458 has 32 divisors (see below), whose sum is σ = 377856. Its totient is φ = 42768.

The previous prime is 157457. The next prime is 157477. The reversal of 157458 is 854751.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157457) 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, 885 + ... + 1047.

It is an arithmetic number, because the mean of its divisors is an integer number (11808).

157458 is a Friedman number, since it can be written as 54^(8-5)-7+1, using all its digits and the basic arithmetic operations.

2¹⁵⁷⁴⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188928).

157458 is an abundant number, since it is smaller than the sum of its proper divisors (220398).

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

157458 is a wasteful number, since it uses less digits than its factorization.

157458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its digits is 5600, while the sum is 30.

The square root of 157458 is about 396.8097781053. The cubic root of 157458 is about 53.9993141202. Note that the first 3 decimals are identical.

It can be divided in two parts, 15745 and 8, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 157458 in words is "one hundred fifty-seven thousand, four hundred fifty-eight".