261150103 has 2 divisors, whose sum is σ = 261150104. Its totient is φ = 261150102.

The previous prime is 261150083. The next prime is 261150139. The reversal of 261150103 is 301051162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261150103 - 2⁹ = 261149591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261150143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130575051 + 130575052.

It is an arithmetic number, because the mean of its divisors is an integer number (130575052).

Almost surely, 2^261150103 is an apocalyptic number.

261150103 is a deficient number, since it is larger than the sum of its proper divisors (1).

261150103 is an equidigital number, since it uses as much as digits as its factorization.

261150103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 261150103 is about 16160.1393248944. The cubic root of 261150103 is about 639.1901401816.

The spelling of 261150103 in words is "two hundred sixty-one million, one hundred fifty thousand, one hundred three".