1121634505 has 16 divisors (see below), whose sum is σ = 1422100800. Its totient is φ = 846901440.

The previous prime is 1121634457. The next prime is 1121634523. The reversal of 1121634505 is 5054361211.

It is not a de Polignac number, because 1121634505 - 2¹⁵ = 1121601737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3610 + ... + 47500.

It is an arithmetic number, because the mean of its divisors is an integer number (88881300).

Almost surely, 2^1121634505 is an apocalyptic number.

It is an amenable number.

1121634505 is a deficient number, since it is larger than the sum of its proper divisors (300466295).

1121634505 is a wasteful number, since it uses less digits than its factorization.

1121634505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44184.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1121634505 is about 33490.8122475404. The cubic root of 1121634505 is about 1039.0037627663.

Adding to 1121634505 its reverse (5054361211), we get a palindrome (6175995716).

The spelling of 1121634505 in words is "one billion, one hundred twenty-one million, six hundred thirty-four thousand, five hundred five".