1121162757 has 32 divisors (see below), whose sum is σ = 1763233920. Its totient is φ = 624721920.

The previous prime is 1121162729. The next prime is 1121162803. The reversal of 1121162757 is 7572611211.

It is not a de Polignac number, because 1121162757 - 2¹⁰ = 1121161733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121162857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105169 + ... + 115337.

It is an arithmetic number, because the mean of its divisors is an integer number (55101060).

Almost surely, 2^1121162757 is an apocalyptic number.

It is an amenable number.

1121162757 is a deficient number, since it is larger than the sum of its proper divisors (642071163).

1121162757 is a wasteful number, since it uses less digits than its factorization.

1121162757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10453.

The product of its digits is 5880, while the sum is 33.

The square root of 1121162757 is about 33483.7685603040. The cubic root of 1121162757 is about 1038.8580775549.

Adding to 1121162757 its reverse (7572611211), we get a palindrome (8693773968).

It can be divided in two parts, 1121 and 162757, that added together give a triangular number (163878 = T₅₇₂).

The spelling of 1121162757 in words is "one billion, one hundred twenty-one million, one hundred sixty-two thousand, seven hundred fifty-seven".