1115145415 has 4 divisors (see below), whose sum is σ = 1338174504. Its totient is φ = 892116328.

The previous prime is 1115145407. The next prime is 1115145433. The reversal of 1115145415 is 5145415111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5145415111 = 113 ⋅45534647.

It is a cyclic number.

It is not a de Polignac number, because 1115145415 - 2³ = 1115145407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111514537 + ... + 111514546.

It is an arithmetic number, because the mean of its divisors is an integer number (334543626).

Almost surely, 2^1115145415 is an apocalyptic number.

1115145415 is a deficient number, since it is larger than the sum of its proper divisors (223029089).

1115145415 is an equidigital number, since it uses as much as digits as its factorization.

1115145415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223029088.

The product of its digits is 2000, while the sum is 28.

The square root of 1115145415 is about 33393.7930609866. The cubic root of 1115145415 is about 1036.9962065596.

The spelling of 1115145415 in words is "one billion, one hundred fifteen million, one hundred forty-five thousand, four hundred fifteen".