1126290787 has 16 divisors (see below), whose sum is σ = 1191627360. Its totient is φ = 1063238400.

The previous prime is 1126290779. The next prime is 1126290799. The reversal of 1126290787 is 7870926211.

It is a cyclic number.

It is not a de Polignac number, because 1126290787 - 2³ = 1126290779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126290727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189237 + ... + 195097.

It is an arithmetic number, because the mean of its divisors is an integer number (74476710).

Almost surely, 2^1126290787 is an apocalyptic number.

1126290787 is a deficient number, since it is larger than the sum of its proper divisors (65336573).

1126290787 is a wasteful number, since it uses less digits than its factorization.

1126290787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 1126290787 is about 33560.2560627895. The cubic root of 1126290787 is about 1040.4395291467.

The spelling of 1126290787 in words is "one billion, one hundred twenty-six million, two hundred ninety thousand, seven hundred eighty-seven".