1155126807 has 6 divisors (see below), whose sum is σ = 1668516512. Its totient is φ = 770084532.

The previous prime is 1155126803. The next prime is 1155126823. The reversal of 1155126807 is 7086215511.

1155126807 is a `hidden beast` number, since 1 + 1 + 551 + 26 + 80 + 7 = 666.

It is not a de Polignac number, because 1155126807 - 2² = 1155126803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155126803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64173703 + ... + 64173720.

Almost surely, 2^1155126807 is an apocalyptic number.

1155126807 is a deficient number, since it is larger than the sum of its proper divisors (513389705).

1155126807 is a wasteful number, since it uses less digits than its factorization.

1155126807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128347429 (or 128347426 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 1155126807 is about 33987.1565006548. The cubic root of 1155126807 is about 1049.2441444539.

The spelling of 1155126807 in words is "one billion, one hundred fifty-five million, one hundred twenty-six thousand, eight hundred seven".