1121053545 has 24 divisors (see below), whose sum is σ = 1962033216. Its totient is φ = 592087968.

The previous prime is 1121053537. The next prime is 1121053573. The reversal of 1121053545 is 5453501211.

1121053545 is a `hidden beast` number, since 1 + 12 + 105 + 3 + 545 = 666.

It is not a de Polignac number, because 1121053545 - 2³ = 1121053537 is a prime.

It is a super-2 number, since 2×1121053545² = 2513522101514134050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116299 + ... + 125568.

It is an arithmetic number, because the mean of its divisors is an integer number (81751384).

Almost surely, 2^1121053545 is an apocalyptic number.

1121053545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121053545 is a deficient number, since it is larger than the sum of its proper divisors (840979671).

1121053545 is a wasteful number, since it uses less digits than its factorization.

1121053545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241981 (or 241978 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1121053545 is about 33482.1377005710. The cubic root of 1121053545 is about 1038.8243448811.

Adding to 1121053545 its reverse (5453501211), we get a palindrome (6574554756).

The spelling of 1121053545 in words is "one billion, one hundred twenty-one million, fifty-three thousand, five hundred forty-five".