201249523 has 2 divisors, whose sum is σ = 201249524. Its totient is φ = 201249522.

The previous prime is 201249511. The next prime is 201249527. The reversal of 201249523 is 325942102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201249523 - 2²⁵ = 167695091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201249491 and 201249500.

It is not a weakly prime, because it can be changed into another prime (201249527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100624761 + 100624762.

It is an arithmetic number, because the mean of its divisors is an integer number (100624762).

Almost surely, 2^201249523 is an apocalyptic number.

201249523 is a deficient number, since it is larger than the sum of its proper divisors (1).

201249523 is an equidigital number, since it uses as much as digits as its factorization.

201249523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 201249523 is about 14186.2441470602. The cubic root of 201249523 is about 586.0188959416.

The spelling of 201249523 in words is "two hundred one million, two hundred forty-nine thousand, five hundred twenty-three".