157523 has 2 divisors, whose sum is σ = 157524. Its totient is φ = 157522.

The previous prime is 157519. The next prime is 157543. The reversal of 157523 is 325751.

It is a weak prime.

It is an emirp because it is prime and its reverse (325751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157523 - 2² = 157519 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (157513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78761 + 78762.

It is an arithmetic number, because the mean of its divisors is an integer number (78762).

2¹⁵⁷⁵²³ is an apocalyptic number.

157523 is a deficient number, since it is larger than the sum of its proper divisors (1).

157523 is an equidigital number, since it uses as much as digits as its factorization.

157523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 23.

The square root of 157523 is about 396.8916728781. The cubic root of 157523 is about 54.0067435565.

The spelling of 157523 in words is "one hundred fifty-seven thousand, five hundred twenty-three".