1245535011 has 12 divisors (see below), whose sum is σ = 2056121392. Its totient is φ = 711734256.

The previous prime is 1245535003. The next prime is 1245535051. The reversal of 1245535011 is 1105355421.

1245535011 is a `hidden beast` number, since 124 + 5 + 535 + 0 + 1 + 1 = 666.

1245535011 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1245535011 - 2³ = 1245535003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245535001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9885136 + ... + 9885261.

Almost surely, 2^1245535011 is an apocalyptic number.

1245535011 is a deficient number, since it is larger than the sum of its proper divisors (810586381).

1245535011 is a wasteful number, since it uses less digits than its factorization.

1245535011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19770410 (or 19770407 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1245535011 is about 35292.1380905153. The cubic root of 1245535011 is about 1075.9332112029.

The spelling of 1245535011 in words is "one billion, two hundred forty-five million, five hundred thirty-five thousand, eleven".