157361 has 4 divisors (see below), whose sum is σ = 161652. Its totient is φ = 153072.

The previous prime is 157351. The next prime is 157363. The reversal of 157361 is 163751.

157361 = 280² + 281².

157361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78400 + 78961 = 280^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 157361 - 2¹⁴ = 140977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 157361.

It is not an unprimeable number, because it can be changed into a prime (157363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (40413).

2¹⁵⁷³⁶¹ is an apocalyptic number.

157361 is the 281-st centered square number.

It is an amenable number.

157361 is a deficient number, since it is larger than the sum of its proper divisors (4291).

157361 is an equidigital number, since it uses as much as digits as its factorization.

157361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290.

The product of its digits is 630, while the sum is 23.

The square root of 157361 is about 396.6875344651. The cubic root of 157361 is about 53.9882233120.

The spelling of 157361 in words is "one hundred fifty-seven thousand, three hundred sixty-one".