1121488547 has 16 divisors (see below), whose sum is σ = 1220017920. Its totient is φ = 1027404000.

The previous prime is 1121488517. The next prime is 1121488567. The reversal of 1121488547 is 7458841211.

It is a cyclic number.

It is not a de Polignac number, because 1121488547 - 2³⁰ = 47746723 is a prime.

It is a super-2 number, since 2×1121488547² = 2515473122104342418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121488517) 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, 75722 + ... + 89312.

It is an arithmetic number, because the mean of its divisors is an integer number (76251120).

Almost surely, 2^1121488547 is an apocalyptic number.

1121488547 is a deficient number, since it is larger than the sum of its proper divisors (98529373).

1121488547 is a wasteful number, since it uses less digits than its factorization.

1121488547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754.

The product of its digits is 71680, while the sum is 41.

The square root of 1121488547 is about 33488.6331013973. The cubic root of 1121488547 is about 1038.9586923835.

The spelling of 1121488547 in words is "one billion, one hundred twenty-one million, four hundred eighty-eight thousand, five hundred forty-seven".