1120172787 has 16 divisors (see below), whose sum is σ = 1660560000. Its totient is φ = 746311752.

The previous prime is 1120172773. The next prime is 1120172869. The reversal of 1120172787 is 7872710211.

It is not a de Polignac number, because 1120172787 - 2⁴ = 1120172771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1120172717) 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, 33664 + ... + 58082.

It is an arithmetic number, because the mean of its divisors is an integer number (103785000).

Almost surely, 2^1120172787 is an apocalyptic number.

1120172787 is a deficient number, since it is larger than the sum of its proper divisors (540387213).

1120172787 is a wasteful number, since it uses less digits than its factorization.

1120172787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26127 (or 26121 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 36.

The square root of 1120172787 is about 33468.9824613776. The cubic root of 1120172787 is about 1038.5522221169.

Adding to 1120172787 its reverse (7872710211), we get a palindrome (8992882998).

The spelling of 1120172787 in words is "one billion, one hundred twenty million, one hundred seventy-two thousand, seven hundred eighty-seven".