1382548731 has 8 divisors (see below), whose sum is σ = 1843591680. Its totient is φ = 921602472.

The previous prime is 1382548693. The next prime is 1382548733. The reversal of 1382548731 is 1378452831.

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

It is not a de Polignac number, because 1382548731 - 2⁷ = 1382548603 is a prime.

It is a super-2 number, since 2×1382548731² = 3822881987179420722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1382548733) 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, 21550 + ... + 56828.

It is an arithmetic number, because the mean of its divisors is an integer number (230448960).

Almost surely, 2^1382548731 is an apocalyptic number.

1382548731 is a deficient number, since it is larger than the sum of its proper divisors (461042949).

1382548731 is a wasteful number, since it uses less digits than its factorization.

1382548731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48345.

The product of its digits is 161280, while the sum is 42.

The square root of 1382548731 is about 37182.6401832898. The cubic root of 1382548731 is about 1114.0212693375.

The spelling of 1382548731 in words is "one billion, three hundred eighty-two million, five hundred forty-eight thousand, seven hundred thirty-one".