201261787 has 2 divisors, whose sum is σ = 201261788. Its totient is φ = 201261786.

The previous prime is 201261733. The next prime is 201261811. The reversal of 201261787 is 787162102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201261787 is a prime.

It is not a weakly prime, because it can be changed into another prime (201261287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100630893 + 100630894.

It is an arithmetic number, because the mean of its divisors is an integer number (100630894).

Almost surely, 2^201261787 is an apocalyptic number.

201261787 is a deficient number, since it is larger than the sum of its proper divisors (1).

201261787 is an equidigital number, since it uses as much as digits as its factorization.

201261787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 201261787 is about 14186.6763901909. The cubic root of 201261787 is about 586.0307995553.

The spelling of 201261787 in words is "two hundred one million, two hundred sixty-one thousand, seven hundred eighty-seven".