107785261 has 2 divisors, whose sum is σ = 107785262. Its totient is φ = 107785260.

The previous prime is 107785247. The next prime is 107785267. The reversal of 107785261 is 162587701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81108036 + 26677225 = 9006^2 + 5165^2 .

It is an emirp because it is prime and its reverse (162587701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 107785261 - 2⁵ = 107785229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 107785261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107785267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53892630 + 53892631.

It is an arithmetic number, because the mean of its divisors is an integer number (53892631).

Almost surely, 2^107785261 is an apocalyptic number.

It is an amenable number.

107785261 is a deficient number, since it is larger than the sum of its proper divisors (1).

107785261 is an equidigital number, since it uses as much as digits as its factorization.

107785261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 107785261 is about 10381.9680696870. The cubic root of 107785261 is about 475.9044793970.

The spelling of 107785261 in words is "one hundred seven million, seven hundred eighty-five thousand, two hundred sixty-one".