1815045713 has 8 divisors (see below), whose sum is σ = 2039650368. Its totient is φ = 1602581904.

The previous prime is 1815045697. The next prime is 1815045719. The reversal of 1815045713 is 3175405181.

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 1815045713 - 2⁴ = 1815045697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1815045719) 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, 3034895 + ... + 3035492.

It is an arithmetic number, because the mean of its divisors is an integer number (254956296).

Almost surely, 2^1815045713 is an apocalyptic number.

1815045713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1815045713 is a deficient number, since it is larger than the sum of its proper divisors (224604655).

1815045713 is a wasteful number, since it uses less digits than its factorization.

1815045713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6070423.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 1815045713 is about 42603.3533069875. The cubic root of 1815045713 is about 1219.8202980413.

The spelling of 1815045713 in words is "one billion, eight hundred fifteen million, forty-five thousand, seven hundred thirteen".