1200542115 has 32 divisors (see below), whose sum is σ = 2031224832. Its totient is φ = 604512000.

The previous prime is 1200542111. The next prime is 1200542117. The reversal of 1200542115 is 5112450021.

1200542115 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1200542115 - 2² = 1200542111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200542091 and 1200542100.

It is not an unprimeable number, because it can be changed into a prime (1200542111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12421 + ... + 50550.

It is an arithmetic number, because the mean of its divisors is an integer number (63475776).

Almost surely, 2^1200542115 is an apocalyptic number.

1200542115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1200542115 is a deficient number, since it is larger than the sum of its proper divisors (830682717).

1200542115 is a wasteful number, since it uses less digits than its factorization.

1200542115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63051.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1200542115 is about 34648.8400238738. The cubic root of 1200542115 is about 1062.8185681885.

Adding to 1200542115 its reverse (5112450021), we get a palindrome (6312992136).

The spelling of 1200542115 in words is "one billion, two hundred million, five hundred forty-two thousand, one hundred fifteen".