1121544315 has 48 divisors (see below), whose sum is σ = 2102226048. Its totient is φ = 550975488.

The previous prime is 1121544251. The next prime is 1121544337. The reversal of 1121544315 is 5134451211.

1121544315 is a `hidden beast` number, since 1 + 1 + 215 + 443 + 1 + 5 = 666.

It is not a de Polignac number, because 1121544315 - 2⁶ = 1121544251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20359 + ... + 51551.

It is an arithmetic number, because the mean of its divisors is an integer number (43796376).

Almost surely, 2^1121544315 is an apocalyptic number.

1121544315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1121544315 is a deficient number, since it is larger than the sum of its proper divisors (980681733).

1121544315 is a wasteful number, since it uses less digits than its factorization.

1121544315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31268 (or 31265 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1121544315 is about 33489.4657317790. The cubic root of 1121544315 is about 1038.9759134504.

Adding to 1121544315 its reverse (5134451211), we get a palindrome (6255995526).

The spelling of 1121544315 in words is "one billion, one hundred twenty-one million, five hundred forty-four thousand, three hundred fifteen".