1145212615 has 8 divisors (see below), whose sum is σ = 1407773808. Its totient is φ = 893824320.

The previous prime is 1145212613. The next prime is 1145212637. The reversal of 1145212615 is 5162125411.

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

It is not a de Polignac number, because 1145212615 - 2¹ = 1145212613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145212613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2792997 + ... + 2793406.

It is an arithmetic number, because the mean of its divisors is an integer number (175971726).

Almost surely, 2^1145212615 is an apocalyptic number.

1145212615 is a deficient number, since it is larger than the sum of its proper divisors (262561193).

1145212615 is an equidigital number, since it uses as much as digits as its factorization.

1145212615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586449.

The product of its digits is 2400, while the sum is 28.

The square root of 1145212615 is about 33840.9901598638. The cubic root of 1145212615 is about 1046.2337069662.

The spelling of 1145212615 in words is "one billion, one hundred forty-five million, two hundred twelve thousand, six hundred fifteen".