157844 has 6 divisors (see below), whose sum is σ = 276234. Its totient is φ = 78920.

The previous prime is 157841. The next prime is 157867. The reversal of 157844 is 448751.

It can be written as a sum of positive squares in only one way, i.e., 122500 + 35344 = 350^2 + 188^2 .

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19727 + ... + 19734.

It is an arithmetic number, because the mean of its divisors is an integer number (46039).

2¹⁵⁷⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

157844 is a deficient number, since it is larger than the sum of its proper divisors (118390).

157844 is a wasteful number, since it uses less digits than its factorization.

157844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39465 (or 39463 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 157844 is about 397.2958595304. The cubic root of 157844 is about 54.0434036043.

It can be divided in two parts, 15784 and 4, that multiplied together give a palindrome (63136).

The spelling of 157844 in words is "one hundred fifty-seven thousand, eight hundred forty-four".