1115351245 has 8 divisors (see below), whose sum is σ = 1350266616. Its totient is φ = 884384256.

The previous prime is 1115351233. The next prime is 1115351257. The reversal of 1115351245 is 5421535111.

It is an interprime number because it is at equal distance from previous prime (1115351233) and next prime (1115351257).

It can be written as a sum of positive squares in 4 ways, for example, as 132779529 + 982571716 = 11523^2 + 31346^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1115351245 - 2⁷ = 1115351117 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 7 ways as a sum of consecutive naturals, for example, 986472 + ... + 987601.

It is an arithmetic number, because the mean of its divisors is an integer number (168783327).

Almost surely, 2^1115351245 is an apocalyptic number.

It is an amenable number.

1115351245 is a deficient number, since it is larger than the sum of its proper divisors (234915371).

1115351245 is a wasteful number, since it uses less digits than its factorization.

1115351245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974191.

The product of its digits is 3000, while the sum is 28.

The square root of 1115351245 is about 33396.8747789370. The cubic root of 1115351245 is about 1037.0600044569.

Adding to 1115351245 its reverse (5421535111), we get a palindrome (6536886356).

It can be divided in two parts, 111 and 5351245, that added together give a triangular number (5351356 = T₃₂₇₁).

The spelling of 1115351245 in words is "one billion, one hundred fifteen million, three hundred fifty-one thousand, two hundred forty-five".