157793 has 2 divisors, whose sum is σ = 157794. Its totient is φ = 157792.

The previous prime is 157771. The next prime is 157799. The reversal of 157793 is 397751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134689 + 23104 = 367^2 + 152^2 .

It is an emirp because it is prime and its reverse (397751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157793 is a prime.

It is not a weakly prime, because it can be changed into another prime (157799) 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, 78896 + 78897.

It is an arithmetic number, because the mean of its divisors is an integer number (78897).

2¹⁵⁷⁷⁹³ is an apocalyptic number.

It is an amenable number.

157793 is a deficient number, since it is larger than the sum of its proper divisors (1).

157793 is an equidigital number, since it uses as much as digits as its factorization.

157793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6615, while the sum is 32.

The square root of 157793 is about 397.2316704393. The cubic root of 157793 is about 54.0375824339.

The spelling of 157793 in words is "one hundred fifty-seven thousand, seven hundred ninety-three".