1957523 has 2 divisors, whose sum is σ = 1957524. Its totient is φ = 1957522.

The previous prime is 1957519. The next prime is 1957547. The reversal of 1957523 is 3257591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1957523 - 2² = 1957519 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1957523.

It is not a weakly prime, because it can be changed into another prime (1957573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978761 + 978762.

It is an arithmetic number, because the mean of its divisors is an integer number (978762).

2^1957523 is an apocalyptic number.

1957523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957523 is an equidigital number, since it uses as much as digits as its factorization.

1957523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 32.

The square root of 1957523 is about 1399.1150774686. The cubic root of 1957523 is about 125.0937536644.

The spelling of 1957523 in words is "one million, nine hundred fifty-seven thousand, five hundred twenty-three".