1126542987 has 6 divisors (see below), whose sum is σ = 1627228772. Its totient is φ = 751028652.

The previous prime is 1126542983. The next prime is 1126543009. The reversal of 1126542987 is 7892456211.

1126542987 is a `hidden beast` number, since 1 + 1 + 26 + 542 + 9 + 87 = 666.

It is not a de Polignac number, because 1126542987 - 2² = 1126542983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126542983) 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, 62585713 + ... + 62585730.

Almost surely, 2^1126542987 is an apocalyptic number.

1126542987 is a deficient number, since it is larger than the sum of its proper divisors (500685785).

1126542987 is a wasteful number, since it uses less digits than its factorization.

1126542987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125171449 (or 125171446 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 1126542987 is about 33564.0132731472. The cubic root of 1126542987 is about 1040.5171820552.

The spelling of 1126542987 in words is "one billion, one hundred twenty-six million, five hundred forty-two thousand, nine hundred eighty-seven".