1266510245 has 32 divisors (see below), whose sum is σ = 2040595200. Its totient is φ = 728778240.

The previous prime is 1266510233. The next prime is 1266510247. The reversal of 1266510245 is 5420156621.

1266510245 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1266510245 - 2⁴ = 1266510229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266510247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121520 + ... + 131529.

It is an arithmetic number, because the mean of its divisors is an integer number (63768600).

Almost surely, 2^1266510245 is an apocalyptic number.

It is an amenable number.

1266510245 is a deficient number, since it is larger than the sum of its proper divisors (774084955).

1266510245 is a wasteful number, since it uses less digits than its factorization.

1266510245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253085.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1266510245 is about 35588.0632375520. The cubic root of 1266510245 is about 1081.9393153429.

Adding to 1266510245 its reverse (5420156621), we get a palindrome (6686666866).

The spelling of 1266510245 in words is "one billion, two hundred sixty-six million, five hundred ten thousand, two hundred forty-five".