1380723217 has 8 divisors (see below), whose sum is σ = 1455760800. Its totient is φ = 1305922464.

The previous prime is 1380723199. The next prime is 1380723269. The reversal of 1380723217 is 7123270831.

It is a happy number.

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 1380723217 - 2²³ = 1372334609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380720217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47167 + ... + 70612.

It is an arithmetic number, because the mean of its divisors is an integer number (181970100).

Almost surely, 2^1380723217 is an apocalyptic number.

It is an amenable number.

1380723217 is a deficient number, since it is larger than the sum of its proper divisors (75037583).

1380723217 is a wasteful number, since it uses less digits than its factorization.

1380723217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118415.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1380723217 is about 37158.0841406012. The cubic root of 1380723217 is about 1113.5307363782.

The spelling of 1380723217 in words is "one billion, three hundred eighty million, seven hundred twenty-three thousand, two hundred seventeen".