1509968243 has 8 divisors (see below), whose sum is σ = 1781345280. Its totient is φ = 1252508040.

The previous prime is 1509968233. The next prime is 1509968269. The reversal of 1509968243 is 3428699051.

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

It is not a de Polignac number, because 1509968243 - 2⁴ = 1509968227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1509968233) 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, 3478973 + ... + 3479406.

It is an arithmetic number, because the mean of its divisors is an integer number (222668160).

Almost surely, 2^1509968243 is an apocalyptic number.

1509968243 is a deficient number, since it is larger than the sum of its proper divisors (271377037).

1509968243 is an equidigital number, since it uses as much as digits as its factorization.

1509968243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958417.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 1509968243 is about 38858.3098320038. The cubic root of 1509968243 is about 1147.2443771891.

The spelling of 1509968243 in words is "one billion, five hundred nine million, nine hundred sixty-eight thousand, two hundred forty-three".