1145211115 has 8 divisors (see below), whose sum is σ = 1375719408. Its totient is φ = 915191520.

The previous prime is 1145211113. The next prime is 1145211173. The reversal of 1145211115 is 5111125411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1145211115 - 2¹ = 1145211113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145211113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116997 + ... + 126406.

It is an arithmetic number, because the mean of its divisors is an integer number (171964926).

Almost surely, 2^1145211115 is an apocalyptic number.

1145211115 is a deficient number, since it is larger than the sum of its proper divisors (230508293).

1145211115 is an equidigital number, since it uses as much as digits as its factorization.

1145211115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244349.

The product of its digits is 200, while the sum is 22.

The square root of 1145211115 is about 33840.9679973845. The cubic root of 1145211115 is about 1046.2332501802.

Adding to 1145211115 its reverse (5111125411), we get a palindrome (6256336526).

The spelling of 1145211115 in words is "one billion, one hundred forty-five million, two hundred eleven thousand, one hundred fifteen".